Common Weakness Enumeration
CWE-287
DiscouragedImproper Authentication
Abstraction: Class · Status: Draft
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
2085 vulnerabilities reference this CWE, most recent first.
CVE-2026-103895 (GCVE-0-2026-103895)
Vulnerability from cvelistv5 – Published: 2026-10-16 04:26 – Updated: 2026-10-16 15:45
VLAI
EPSS
VEX
Title
miniOrange OTP Login, Verification and SMS Notifications <= 5.5.8 - Unauthenticated Authentication Bypass via Delay OTP Grace State
Summary
The miniOrange OTP Login, Verification and SMS Notifications plugin for WordPress is vulnerable to Authentication Bypass in versions up to, and including, 5.5.8 via the `mo_by_pass_login()` function. This is due to `mo_delay_otp_process()` short-circuiting the authentication flow before password validation or the administrator intent gate (added in 5.5.6) can run, combined with the Delay OTP grace flag (`mov_last_verified_dttm`) being stored as a `user_meta` row keyed solely by target user ID with no binding to the originating session, cookie, IP address, or device. This makes it possible for unauthenticated attackers to authenticate as any WordPress user — including administrators — by submitting only a known username with the `mo_wp_login_intent=otp` parameter and any non-empty password, thereby inheriting a legitimate user's open Delay OTP grace window without ever supplying correct credentials. Exploitation requires the site to have OTP-only login (`wp_login_skip_password=1`, `wp_login_skip_password_fallback=0`) and Delay OTP Verification (`wp_login_delay_otp=1`) enabled, and the target account must currently be within its configured Delay OTP interval.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 15:45 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
Wordfence
CNA
References
8 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| cyberlord92 | miniOrange OTP Login, Verification and SMS Notifications |
Affected:
0 , ≤ 5.5.8
(semver)
|
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CVE-2026-103779 (GCVE-0-2026-103779)
Vulnerability from cvelistv5 – Published: 2026-10-28 10:22 – Updated: 2026-10-29 03:57
VLAI
EPSS
VEX
Summary
Dell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.13.1.80, LTS2025 release versions 8.3.1.0 through 8.3.1.40, LTS2026 release versions 8.6.1.0 through 8.6.1.20, contain an Improper Authentication vulnerability. A low privileged attacker with remote access could potentially exploit this vulnerability, leading to Protection mechanism bypass.
Severity
8.3 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-28 00:00 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
dell
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://www.dell.com/support/kbdoc/en-us/00051517… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Dell | PowerProtect Data Domain |
Affected:
0 , < 8.9.0.0 or later
(semver)
Affected: 0 , < 7.13.1.90 or later (semver) Affected: 0 , < 8.3.1.50 or later (semver) Affected: 0 , < 8.6.1.30 or later (semver) |
Date Public
2026-10-19 06:30
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CVE-2026-103651 (GCVE-0-2026-103651)
Vulnerability from cvelistv5 – Published: 2026-10-01 07:34 – Updated: 2026-10-01 15:32
VLAI
EPSS
VEX
Title
MISP HOTP Token Replay via Stale Session-Cached Counter Allows Second-Factor Authentication Bypass
Summary
MISP contains a vulnerability in its one-time password (OTP) authentication flow that allows replay of a consumed HOTP (paper) token and rewinding of the token counter.
The HOTP verification logic compared the submitted token against a counter value that was cached in the user's session at the time the password was entered, rather than against the authoritative counter stored in the database. Because the session-cached counter is not updated after a token is successfully consumed, an attacker who holds a valid session (password already submitted) can reuse a previously burned HOTP token. The stale cached counter still matches the replayed token, granting a second successful authentication and effectively rewinding the counter state.
Preconditions:
- The target user has HOTP (paper token) second-factor authentication enabled.
- The attacker possesses a valid session in which the password step has already been completed (the OTP step is pending).
- The attacker has access to at least one HOTP token value (e.g., a paper token list).
Security impact:
- Bypass of the second authentication factor, allowing unauthorized access to a user's MISP account.
- Corruption of the HOTP counter state, potentially invalidating subsequent legitimate tokens or enabling further replays.
Affected versions: <2.5.48.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
Supplier · CIRCL (v2.0.3)
Decision recorded 2026-10-01 07:22 UTC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 15:31 UTC
CWE
Assigner
CIRCL
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/MISP/MISP/commit/f34aee2c7 | patch |
Impacted products
GCVE extensions
AI-generated
Human-reviewed
Confidence: medium
Model
qwen3.8:27b
1 event
advisory
bcp-05-x-01bcp-05-x-02bcp-05-x-03
Draft vulnerability metadata was generated from a git-format patch using an Ollama-hosted language model. Human validation is required before publication.
ai-computer-assisted:llm-generatedai-computer-assisted:classification
| Model | Source | Identifier |
|---|---|---|
| qwen3.8:27b | ollama | qwen3.8:27b |
- Generator
-
patch2vuln.pyon 2026-10-01 07:22 - Model
qwen3.8:27b- Input
-
https://github.com/MISP/MISP/commit/f34aee2c7.patch
9ec05e4a3d95… - Confidence
- medium
| Commit | Subject | Patch SHA-256 |
|---|---|---|
f34aee2c74e1
|
fix: [security] Burn paper OTP tokens against the stored | 9ec05e4a3d95… |
Fix summary
The fix replaces the session-cached HOTP counter lookup with a direct read of the authoritative counter from the database, performed under a Redis-based distributed lock scoped to the user. The token is verified against the current stored counter, the counter is incremented and persisted atomically within the locked section, and the lock is released in a finally block. Additionally, the cached OTP user session entry is deleted immediately after a successful login (for both TOTP and HOTP paths), preventing the stale session state from being reused.
Patch summary
In UsersController::otp(), the inline HOTP verification block (which used the session-cached $user['hotp_counter']) is replaced with a call to a new private method __consumeHotp(). This method acquires a Redis SETNX lock (misp:otp:hotp_lock:{userId}, 10 s TTL), re-fetches the user's totp secret and hotp_counter from the database, verifies the submitted OTP against the stored counter, increments and saves the counter, and releases the lock in a finally block. The otp_user session key is now deleted after both TOTP and HOTP successful login paths. Net change: +36 / -5 lines in app/Controller/UsersController.php.
CVSS rationale
AV:N – MISP is a network-accessible web application. AC:H – exploitation requires a valid session with the password step already completed, possession of a valid HOTP token value, and the session must still hold the stale cached counter; multiple preconditions must align. AT:N – no manipulation of the target system is needed. PR:L – the attacker must be an authenticated user with a pending OTP session. UI:N – no additional user interaction is required beyond the initial login flow. VC:H – successful exploitation grants full access to the target user's MISP account and its data. VI:H – the attacker can perform any action the user is authorized to perform, and the counter corruption may affect subsequent legitimate authentication. VA:N – no denial-of-service impact is evident. SC/SI/SA:N – no secondary system impact is indicated by the patch.
Weakness rationale
- CWE-362 The HOTP counter is shared mutable state accessed without synchronization. The session-cached copy becomes stale relative to the database copy, and no lock is held during read-verify-increment, allowing a concurrent or replayed request to operate on the old value.
- CWE-287 The OTP verification logic accepts a token that has already been consumed because it compares against a stale cached counter rather than the authoritative stored counter, effectively weakening the second-factor authentication check.
Attack pattern rationale
- CAPEC-111 The vulnerability is exploited by exploiting the time window between the session-cached counter being set (at password entry) and the token being consumed, allowing a replayed token to be validated against the stale value. CAPEC-111 (Race Condition) is the closest available CAPEC pattern; the attack is not a classic TOCTOU on a file or memory location but rather a stale-cache race on a shared counter, which falls under the broader race-condition category. No more specific CAPEC for session-cached credential state replay exists in the CAPEC catalog, so this is the best available match.
Assumptions to verify
- The tag_version_boundary metadata (v2.5.48, 41 commits after fix) is interpreted as the first release containing the fix; no explicit fixed_version or affected_version was provided in the metadata.
- The CAPEC-111 mapping is the closest available pattern; the vulnerability is specifically a stale-session-cache replay rather than a classic TOCTOU race, and no more precise CAPEC exists in the catalog.
- CVSS PR:L assumes the attacker already has a valid authenticated session (password step completed); if the threat model requires unauthenticated access, PR would be None but AC would remain High.
- The Redis lock is assumed to be available in the deployment; if Redis is not configured, the locking mechanism may be bypassed, though this is a deployment concern not reflected in the patch.
- The Co-Authored-By line references an AI assistant; it is recorded as a tool credit rather than a human remediation developer.
Model comparison
Selected qwen3.8:27b
by deterministic-consensus-v1
The selected result is closest to model consensus; this heuristic does not establish factual correctness and human review remains required.
| Model | Score | Agreement | Confidence | Assumptions |
|---|---|---|---|---|
qwen3.8:27b |
7 | 11 | medium | 5 |
- 2026-09-23 14:20 UTC Fix developed Corrective change authored (f34aee2c74e111fffd07e8ddde8e4843ccf998db): fix: [security] Burn paper OTP tokens against the stored https://github.com/MISP/MISP/commit/f34aee2c7.patch
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CVE-2026-103539 (GCVE-0-2026-103539)
Vulnerability from cvelistv5 – Published: 2026-10-01 05:00 – Updated: 2026-10-06 00:00
VLAI
EPSS
VEX
Title
ZongXR SuperMarket Instant Buy InstantBuyController.java startBuy missing authentication
Summary
A weakness has been identified in ZongXR SuperMarket 1.0.0.0. This affects the function startBuy of the file instant-buy/src/main/java/com/supermarket/instantbuy/controller/InstantBuyController.java of the component Instant Buy. Executing a manipulation of the argument Username can lead to missing authentication. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-06 00:00 UTC
Assigner
VulDB
CNA
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/412349 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/412349/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-103539 | third-party-advisory |
| https://vuldb.com/submit/957826 | third-party-advisory |
| https://github.com/ZongXR/SuperMarket/issues/30 | exploitissue-tracking |
| https://github.com/ZongXR/SuperMarket/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ZongXR | SuperMarket |
Affected:
1.0.0.0
cpe:2.3:a:zongxr:supermarket:*:*:*:*:*:*:*:* |
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CVE-2026-103538 (GCVE-0-2026-103538)
Vulnerability from cvelistv5 – Published: 2026-10-01 04:30 – Updated: 2026-10-01 14:16
VLAI
EPSS
VEX
Title
ZongXR SuperMarket Order Deletion Endpoint OrderController.java OrderController.deleteOrder missing authentication
Summary
A security flaw has been discovered in ZongXR SuperMarket 1.0.0.0. Affected by this issue is the function OrderController.deleteOrder of the file order/src/main/java/com/supermarket/order/controller/OrderController.java of the component Order Deletion Endpoint. Performing a manipulation of the argument orderId results in missing authentication. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 14:15 UTC
Assigner
VulDB
CNA
References
6 references
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|---|---|
| https://vuldb.com/vuln/412348 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/412348/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-103538 | third-party-advisory |
| https://vuldb.com/submit/957825 | third-party-advisory |
| https://github.com/ZongXR/SuperMarket/issues/31 | exploitissue-tracking |
| https://github.com/ZongXR/SuperMarket/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ZongXR | SuperMarket |
Affected:
1.0.0.0
cpe:2.3:a:zongxr:supermarket:*:*:*:*:*:*:*:* |
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CVE-2026-103536 (GCVE-0-2026-103536)
Vulnerability from cvelistv5 – Published: 2026-10-01 04:15 – Updated: 2026-10-01 19:09
VLAI
EPSS
VEX
Title
ZongXR Supermarket save Endpoint OrderController.java OrderController.addOrder missing authentication
Summary
A vulnerability was identified in ZongXR Supermarket 1.0.0.0. Affected by this vulnerability is the function OrderController.addOrder of the file order/src/main/java/com/supermarket/order/controller/OrderController.java of the component save Endpoint. Such manipulation of the argument userId leads to missing authentication. The attack can be executed remotely. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 19:08 UTC
Assigner
VulDB
CNA
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/412347 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/412347/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-103536 | third-party-advisory |
| https://vuldb.com/submit/957824 | third-party-advisory |
| https://github.com/ZongXR/SuperMarket/issues/32 | exploitissue-tracking |
| https://github.com/ZongXR/SuperMarket/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ZongXR | Supermarket |
Affected:
1.0.0.0
cpe:2.3:a:zongxr:supermarket:*:*:*:*:*:*:*:* |
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CVE-2026-103264 (GCVE-0-2026-103264)
Vulnerability from cvelistv5 – Published: 2026-10-01 10:42 – Updated: 2026-10-01 13:32
VLAI
EPSS
VEX
Title
Fleet before 4.87.0 Authentication Bypass via Device Identifiers
Summary
Fleet versions before 4.87.0 contain an authentication bypass vulnerability in the device API that accepts hostnames and hardware serials as authentication tokens in addition to device UUIDs. Unauthenticated attackers who know or guess these non-secret identifiers can authenticate as iOS/iPadOS hosts to read device data and trigger device-scoped actions including software installation and MDM migration.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 13:30 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/fleetdm/fleet/security/advisor… | vendor-advisory |
| https://www.vulncheck.com/advisories/fleet-before… | third-party-advisory |
Impacted products
Date Public
2026-09-15 00:00
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CVE-2026-102899 (GCVE-0-2026-102899)
Vulnerability from cvelistv5 – Published: 2026-10-14 18:57 – Updated: 2026-10-15 14:23
VLAI
EPSS
VEX
Title
Sentry: Improper authentication on SAML SSO process allows user identity linking
Summary
Sentry is an application monitoring and error tracking platform. From 26.5.0 until 26.7.2, the SAML SSO identity-linking flow allows an attacker who controls a SAML identity provider to socially engineer an authenticated user into opening a malicious URL, link the attacker's identity to the victim's Sentry account, and take control of that account. The attack requires a browser that accepts the cross-site cookie context, including Firefox with SameSite=None cookies or Chromium with third-party cookies enabled. Sentry SaaS received the remediation on July 27, 2026, and self-hosted Sentry is fixed in version 26.7.2.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 14:22 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
GitHub_M
CNA
References
7 references
| URL | Tags |
|---|---|
| https://github.com/getsentry/sentry/security/advi… | x_refsource_CONFIRM |
| https://github.com/getsentry/sentry/pull/120467 | x_refsource_MISC |
| https://github.com/getsentry/sentry/pull/120702 | x_refsource_MISC |
| https://github.com/getsentry/sentry/commit/9c982d… | x_refsource_MISC |
| https://github.com/getsentry/sentry/commit/ec963d… | x_refsource_MISC |
| https://github.com/getsentry/self-hosted/releases… | x_refsource_MISC |
| https://github.com/getsentry/sentry/releases/tag/26.7.2 | x_refsource_MISC |
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CVE-2026-102895 (GCVE-0-2026-102895)
Vulnerability from cvelistv5 – Published: 2026-11-04 21:16 – Updated: 2026-11-10 04:55
VLAI
EPSS
VEX
Title
GPUStack: Authentication bypass via trusted loopback source (reverse-proxy TCP peer or X-GPUStack-Real-IP header) grants unauthenticated admin
Summary
GPUStack is an open-source GPU cluster manager for AI model serving and GPU instance provisioning. Prior to 2.2.0, get_current_user in gpustack/api/auth.py treated a loopback request source as the built-in administrator when force_auth_localhost was false, which was the default. A remote request could appear to originate from 127.0.0.1 because client_ip_getter accepted a same-host reverse proxy peer or a client-supplied X-GPUStack-Real-IP loopback value. The bypass allowed unauthenticated administrative access, including user and model changes, persistent administrator API-key creation, disclosure of worker and cloud-provider secrets, and code execution through POST /v2/inference-backends/from-yaml. Exploitation was observed in the wild against a 2.1.1 deployment. This issue is fixed in version 2.2.0.
Severity
9.8 (Critical)
SSVC
Exploitation: active
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-05 00:00 UTC
CWE
Assigner
GitHub_M
CNA
References
5 references
| URL | Tags |
|---|---|
| https://github.com/gpustack/gpustack/security/adv… | x_refsource_CONFIRM |
| https://github.com/gpustack/gpustack/pull/5346 | x_refsource_MISC |
| https://github.com/gpustack/gpustack/commit/53f42… | x_refsource_MISC |
| https://github.com/gpustack/gpustack/releases/tag… | x_refsource_MISC |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
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CVE-2026-102893 (GCVE-0-2026-102893)
Vulnerability from cvelistv5 – Published: 2026-10-14 15:49 – Updated: 2026-10-15 19:06
VLAI
EPSS
VEX
Title
Zulip: OpenID Connect authentication ignores the email_verified claim
Summary
Zulip is an open-source team collaboration tool. In Zulip Server versions through 12.1, GenericOpenIdConnectBackend matches the identity provider email claim to an active account's delivery_email without rejecting an explicitly false email_verified claim. If a configured identity provider returns an email address that the authenticating user does not control together with email_verified=false, Zulip can log the user into the existing account for that address. Exploitation requires a misconfigured trusted identity provider, and deployments whose authoritative identity provider only emits email addresses controlled by the authenticating user are not affected. This issue is fixed in version 12.2.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 19:05 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
GitHub_M
CNA
References
5 references
| URL | Tags |
|---|---|
| https://github.com/zulip/zulip/security/advisorie… | x_refsource_CONFIRM |
| https://github.com/zulip/zulip/pull/39913 | x_refsource_MISC |
| https://github.com/zulip/zulip/commit/68d2d9defa3… | x_refsource_MISC |
| https://github.com/zulip/zulip/commit/b40f191a8c7… | x_refsource_MISC |
| https://github.com/zulip/zulip/releases/tag/12.2 | x_refsource_MISC |
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Mitigation
Architecture and Design
Strategy: Libraries or Frameworks
Use an authentication framework or library such as the OWASP ESAPI Authentication feature.
CAPEC-114: Authentication Abuse
An attacker obtains unauthorized access to an application, service or device either through knowledge of the inherent weaknesses of an authentication mechanism, or by exploiting a flaw in the authentication scheme's implementation. In such an attack an authentication mechanism is functioning but a carefully controlled sequence of events causes the mechanism to grant access to the attacker.
CAPEC-115: Authentication Bypass
An attacker gains access to application, service, or device with the privileges of an authorized or privileged user by evading or circumventing an authentication mechanism. The attacker is therefore able to access protected data without authentication ever having taken place.
CAPEC-151: Identity Spoofing
Identity Spoofing refers to the action of assuming (i.e., taking on) the identity of some other entity (human or non-human) and then using that identity to accomplish a goal. An adversary may craft messages that appear to come from a different principle or use stolen / spoofed authentication credentials.
CAPEC-194: Fake the Source of Data
An adversary takes advantage of improper authentication to provide data or services under a falsified identity. The purpose of using the falsified identity may be to prevent traceability of the provided data or to assume the rights granted to another individual. One of the simplest forms of this attack would be the creation of an email message with a modified "From" field in order to appear that the message was sent from someone other than the actual sender. The root of the attack (in this case the email system) fails to properly authenticate the source and this results in the reader incorrectly performing the instructed action. Results of the attack vary depending on the details of the attack, but common results include privilege escalation, obfuscation of other attacks, and data corruption/manipulation.
CAPEC-22: Exploiting Trust in Client
An attack of this type exploits vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by communicating directly with the server where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
CAPEC-57: Utilizing REST's Trust in the System Resource to Obtain Sensitive Data
This attack utilizes a REST(REpresentational State Transfer)-style applications' trust in the system resources and environment to obtain sensitive data once SSL is terminated.
CAPEC-593: Session Hijacking
This type of attack involves an adversary that exploits weaknesses in an application's use of sessions in performing authentication. The adversary is able to steal or manipulate an active session and use it to gain unathorized access to the application.
CAPEC-633: Token Impersonation
An adversary exploits a weakness in authentication to create an access token (or equivalent) that impersonates a different entity, and then associates a process/thread to that that impersonated token. This action causes a downstream user to make a decision or take action that is based on the assumed identity, and not the response that blocks the adversary.
CAPEC-650: Upload a Web Shell to a Web Server
By exploiting insufficient permissions, it is possible to upload a web shell to a web server in such a way that it can be executed remotely. This shell can have various capabilities, thereby acting as a "gateway" to the underlying web server. The shell might execute at the higher permission level of the web server, providing the ability the execute malicious code at elevated levels.
CAPEC-94: Adversary in the Middle (AiTM)
An adversary targets the communication between two components (typically client and server), in order to alter or obtain data from transactions. A general approach entails the adversary placing themself within the communication channel between the two components.