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.
2084 vulnerabilities reference this CWE, most recent first.
CVE-2026-111882 (GCVE-0-2026-111882)
Vulnerability from cvelistv5 – Published: 2026-10-17 18:46 – Updated: 2026-10-18 12:23
VLAI
EPSS
VEX
Title
phpMyFAQ 3.2.0-alpha before 4.1.9 and 4.2.0-alpha before 4.2.0-beta TOTP 2FA Bypass via SSO Callbacks
Summary
phpMyFAQ 3.2.0-alpha before 4.1.9 and 4.2.0-alpha before 4.2.0-beta contains an authentication bypass vulnerability that allows IdP-authenticated users to skip TOTP two-factor authentication through the Keycloak and Entra ID SSO callbacks. Attackers holding a valid or phished IdP identity linked to a 2FA-enabled account can complete the OIDC flow and obtain a fully authenticated session, including administrator accounts.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-18 12:17 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
VulnCheck
CNA
References
3 references
| URL | Tags |
|---|---|
| https://github.com/thorsten/phpMyFAQ/security/adv… | vendor-advisory |
| https://github.com/thorsten/phpMyFAQ/security/adv… | vendor-advisory |
| https://www.vulncheck.com/advisories/phpmyfaq-3.2… | third-party-advisory |
Impacted products
Date Public
2026-10-03 00:00
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CVE-2026-111870 (GCVE-0-2026-111870)
Vulnerability from cvelistv5 – Published: 2026-10-18 03:30 – Updated: 2026-10-19 15:24
VLAI
EPSS
VEX
Title
itsmeravitejak Online-Examination-System admin.php isAdmin missing authentication
Summary
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Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-19 15:23 UTC
Assigner
VulDB
CNA
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/421582 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/421582/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-111870 | third-party-advisory |
| https://vuldb.com/submit/1005047 | third-party-advisory |
| https://github.com/itsmeravitejak/Online-Examinat… | exploitissue-tracking |
| https://github.com/itsmeravitejak/Online-Examinat… | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| itsmeravitejak | Online-Examination-System |
Affected:
e6208e630b14657999bbfe4c9912302d2a1e2449
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CVE-2026-111639 (GCVE-0-2026-111639)
Vulnerability from cvelistv5 – Published: 2026-10-16 17:39 – Updated: 2026-10-21 20:45
VLAI
EPSS
VEX
Title
bbs-go through 4.4.6 Account Takeover via Google One Tap Login
Summary
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Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-21 20:45 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
VulnCheck
CNA
References
4 references
| URL | Tags |
|---|---|
| https://hackmd.io/@hieuPenguinnn/bbs-go-google-on… | third-party-advisory |
| https://github.com/mlogclub/bbs-go/blob/v4.4.6/in… | technical-description |
| https://github.com/mlogclub/bbs-go/blob/v4.4.6/in… | technical-description |
| https://www.vulncheck.com/advisories/bbs-go-throu… | third-party-advisory |
Impacted products
Date Public
2026-10-15 00:00
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CVE-2026-111090 (GCVE-0-2026-111090)
Vulnerability from cvelistv5 – Published: 2026-10-20 07:42 – Updated: 2026-10-20 19:13
VLAI
EPSS
VEX
Title
Improper Signature Verification of Firmware Update Files
Summary
A logic error exists in the signature verification routine resulting in acceptance of unauthenticated update and license files.It is necessary to use only the MyStormshield servers to retrieve update files or licenses, or to use automatic verification via SNS.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-20 19:13 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
airbus
CNA
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Stormshield | Stormshield Network Security |
Affected:
4.3.0 , ≤ 4.3.44
(semver)
Affected: 4.8.0 , ≤ 4.8.19 (semver) Affected: 5.0.0 , ≤ 5.0.9 (semver) Affected: 5.1.0 , ≤ 5.1.3 (semver) Unaffected: 4.8.20 LTSB (semver) Unaffected: 5.0.10 (semver) Unaffected: 5.1.4 EA (semver) Unaffected: 4.3.45 QS (semver) |
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CVE-2026-110864 (GCVE-0-2026-110864)
Vulnerability from cvelistv5 – Published: 2026-10-14 22:52 – Updated: 2026-10-15 15:36
VLAI
EPSS
VEX
Title
Better Auth 1.5.0-beta.12 before 1.7.7 Authentication Bypass via OAuth Proxy
Summary
Better Auth from 1.5.0-beta.12 before 1.7.7 contains an authentication bypass vulnerability in the OAuth Proxy plugin that allows unauthenticated attackers to sign in as other users by forging encrypted profiles. When the proxy shares the global secret and cookie-stored state is used, attackers can obtain encrypted state for a fake profile with a victim's verified email to take over the account via implicit linking.
Severity
7.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 15:35 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
VulnCheck
CNA
References
2 references
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|---|---|
| https://github.com/better-auth/better-auth/securi… | vendor-advisory |
| https://www.vulncheck.com/advisories/better-auth-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| better-auth | better-auth |
Affected:
1.5.0-beta.12 , < 1.7.7
(semver)
Unaffected: 1.7.7 (semver) cpe:2.3:a:better-auth:better_auth:*:*:*:*:*:*:*:* |
Date Public
2026-09-30 00:00
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CVE-2026-110863 (GCVE-0-2026-110863)
Vulnerability from cvelistv5 – Published: 2026-10-14 22:52 – Updated: 2026-10-16 17:14
VLAI
EPSS
VEX
Title
Better Auth @better-auth/sso before 1.7.3 Authentication Bypass via Personal SSO Providers
Summary
Better Auth @better-auth/sso from 1.7.0-rc.2 before 1.7.3 contains an authentication bypass vulnerability that allows authenticated users to sign in as other users by registering a personal SSO provider. Attackers can copy a legitimate provider's OIDC issuer or SAML entity ID and assert a victim's subject or NameID, because account lookup ignores providerId, creating sessions for victim accounts.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 16:35 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/better-auth/better-auth/securi… | vendor-advisory |
| https://www.vulncheck.com/advisories/better-auth-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| better-auth | sso |
Affected:
1.7.0-rc.2 , < 1.7.3
(semver)
cpe:2.3:a:better-auth:better-auth\/sso:*:*:*:*:*:*:*:* |
Date Public
2026-09-29 00:00
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CVE-2026-110862 (GCVE-0-2026-110862)
Vulnerability from cvelistv5 – Published: 2026-10-14 22:52 – Updated: 2026-10-15 13:34
VLAI
EPSS
VEX
Title
Better Auth 1.4.0-beta.18 before 1.7.7 Authentication Bypass via Magic Link
Summary
Better Auth from 1.4.0-beta.18 before 1.7.7 contains an authentication bypass vulnerability that allows unauthenticated attackers to sign in as other users by reusing OAuth state values as Magic Link tokens. Attackers can start an OAuth sign-in with a victim's email and submit the returned state to Magic Link verification, gaining sessions or creating falsely email-verified accounts.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 13:33 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/better-auth/better-auth/securi… | vendor-advisory |
| https://www.vulncheck.com/advisories/better-auth-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| better-auth | better-auth |
Affected:
1.4.0-beta.18 , < 1.7.7
(semver)
Unaffected: 1.7.7 (semver) cpe:2.3:a:better-auth:better_auth:*:*:*:*:*:*:*:* |
Date Public
2026-09-30 00:00
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CVE-2026-110799 (GCVE-0-2026-110799)
Vulnerability from cvelistv5 – Published: 2026-10-30 14:19 – Updated: 2026-10-30 15:48
VLAI
EPSS
VEX
Title
Vvveb: Authentication Bypass via PHP Array Injection leading to full Account Takeover
Summary
Vvveb is a powerful and easy to use CMS with page builder to build websites, blogs or ecommerce stores. Prior to version 1.0.8.7, the password reset functionality is vulnerable to an Authentication Bypass due to insufficient validation of the user and token GET parameters. This issue has been patched in version 1.0.8.7.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-30 15:48 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
GitHub_M
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/givanz/Vvveb/security/advisori… | x_refsource_CONFIRM |
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CVE-2026-110669 (GCVE-0-2026-110669)
Vulnerability from cvelistv5 – Published: 2026-10-14 19:45 – Updated: 2026-11-09 16:33
VLAI
EPSS
VEX
Title
cemtan sar2html sar2html.py deleteAll missing authentication
Summary
A security vulnerability has been detected in cemtan sar2html 4.0.0. This affects the function deleteHost/deleteRange/deleteAll of the file sar2html.py. Such manipulation leads to missing authentication. The attack may be performed from remote. The exploit has been disclosed publicly and may 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 2026-10-15 14:05 UTC
Assigner
VulDB
CNA
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/419829 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/419829/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-110669 | third-party-advisory |
| https://vuldb.com/submit/1003769 | third-party-advisory |
| https://github.com/cemtan/sar2html/issues/21 | exploitissue-tracking |
| https://github.com/cemtan/sar2html/ | product |
Impacted products
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CVE-2026-110653 (GCVE-0-2026-110653)
Vulnerability from cvelistv5 – Published: 2026-10-17 02:31 – Updated: 2026-10-18 11:22
VLAI
EPSS
VEX
Title
Appointment Booking Plugin <= 5.7.4 - Unauthenticated Authentication Bypass via Race Condition on OTP Attempts Counter
Summary
The Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress plugin for WordPress is vulnerable to Authentication Bypass via Race Condition in all versions up to, and including, 5.7.4. This is due to a non-atomic read-modify-write on the OTP verification attempts counter in the `verifyOTP` function: the counter is incremented using a stale in-memory value with no conditional `WHERE attempts < 10` guard on the `UPDATE` and no `SELECT ... FOR UPDATE` row lock, creating a TOCTOU window that allows concurrent requests to bypass the 10-attempt lockout. This makes it possible for unauthenticated attackers — who know a target customer's registered email address or phone number — to fire concurrent requests to the `auth__verify_otp` endpoint, defeat the lockout cap, brute-force the 6-digit OTP code, and authenticate as the targeted LatePoint customer, gaining full access to their account, bookings, and personal data. The nonce check present on the endpoint (`otp_verify_otp_nonce`) does not mitigate this issue, as the nonce is publicly emitted by the unauthenticated `request_otp` and `resend_otp` endpoints and is trivially obtainable by any unauthenticated attacker prior to launching the race.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-18 11:09 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
Wordfence
CNA
References
7 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| latepoint | Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress |
Affected:
0 , ≤ 5.7.4
(semver)
|
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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.