Common Weakness Enumeration

CWE-287

Discouraged

Improper 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-2026-110245 (GCVE-0-2026-110245)

Vulnerability from cvelistv5 – Published: 2026-10-29 15:15 – Updated: 2026-11-04 01:18
VLAI
Title
Langflow OSS is affected by multiple vulnerabilities
Summary
IBM Langflow OSS 1.0.0 through 1.12.4 could allow a remote attacker to obtain sensitive information due to improper authentication.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-04 01:17 UTC
CWE
  • CWE-287 - Improper Authentication
Assigner
ibm CNA
References
URL Tags
https://www.ibm.com/support/pages/node/7293016 vendor-advisorypatch
Impacted products
Vendor Product Version
IBM Langflow OSS Affected: 1.0.0 , ≤ 1.12.4 (semver)
    cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:langflow_oss:1.12.4:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-110097 (GCVE-0-2026-110097)

Vulnerability from cvelistv5 – Published: 2026-10-13 16:53 – Updated: 2026-10-14 15:42
VLAI
Title
Ikaros 1.2.0 through 1.2.5 TOTP Authentication Bypass via Temp Token
Summary
Ikaros 1.2.0 through 1.2.5 contains an authentication bypass vulnerability that allows attackers with a valid password to skip TOTP verification by reusing the login temp token. Attackers can present the temp token from the jwt/apply endpoint as a bearer JWT, refresh it, or use HTTP Basic login to gain full account access, including the master administrator.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 15:39 UTC
CWE
  • CWE-287 - Improper Authentication
Assigner
VulnCheck CNA
Impacted products
Vendor Product Version
ikaros-dev ikaros Affected: 1.2.0 , ≤ 1.2.5 (semver)
Create a notification for this product.
Date Public
2026-10-13 00:00
Show details on NVD website

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CVE-2026-109516 (GCVE-0-2026-109516)

Vulnerability from cvelistv5 – Published: 2026-10-29 03:39 – Updated: 2026-10-29 10:45
VLAI
Title
Bot for Telegram on WooCommerce <= 1.3.0 - Unauthenticated Authentication Bypass to Account Takeover via Fake Telegram Webhook + Brute-Forced Login Token
Summary
The Bot for Telegram on WooCommerce plugin for WordPress is vulnerable to Authentication Bypass leading to Account Takeover in all versions up to, and including, 1.3.0. The `/wp-json/woo-telegram/v1/main/` REST endpoint is registered with `permission_callback => '__return_true'` and performs no Telegram webhook signature verification, allowing an unauthenticated attacker to POST a forged bot update with a `message.chat.id` set to any WordPress login name; `bftow_get_user_system_id()` resolves this attacker-supplied value to the targeted account via `get_user_by('login', $tgId)` with no ownership proof, and writes a login token computed as `md5($_SERVER['HTTP_USER_AGENT'] . time())` — both inputs are fully attacker-controlled or bounded within seconds using the response's own `Date` header. The resulting token is redeemable at the unauthenticated, capability-check-free, and nonce-less `?action=bftow_create_order&bftow_token=` endpoint, which calls `wp_set_auth_cookie()` unconditionally via `login_user_by_id`, issuing a persistent authenticated session cookie for the targeted account to the attacker. This makes it possible for unauthenticated attackers to log in as any WordPress user, including administrators, given only that user's username.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-29 10:32 UTC
CWE
  • CWE-287 - Improper Authentication
Assigner
Wordfence CNA
Impacted products
Vendor Product Version
guruteam Bot for Telegram on WooCommerce Affected: 0 , ≤ 1.3.0 (semver)
Create a notification for this product.
Credits
Show details on NVD website

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CVE-2026-109506 (GCVE-0-2026-109506)

Vulnerability from cvelistv5 – Published: 2026-10-14 18:31 – Updated: 2026-10-15 19:33
VLAI
Title
Improper Authentication in Multiple TP-Link WiFi Repeaters
Summary
Multiple TP-Link Wi-Fi range extenders use a custom, reversible XOR-and-dictionary transformation in the HTTP web-management login flow. An unauthenticated attacker on the same local network who can capture the network traffic associated with legitimate administrator login may be able to derive an alternative credential value that produces the same accepted authentication result and use it to authenticate to the device’s web-management interface with administrator privileges. Exploitation requires the management login to use HTTP and the attacker to observe the session key, dictionary, and login value associated with a legitimate administrator login. Successful exploitation may allow an unauthenticated adjacent attacker to gain administrator access to the affected device and modify exposed configuration settings.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 19:33 UTC
CWE
  • CWE-287 - Improper Authentication
Assigner
TPLink CNA
Impacted products
Vendor Product Version
TP-Link Systems Inc. RE190 v5 Affected: 0 , < V5_260904 (custom)
Create a notification for this product.
TP-Link Systems Inc. RE200 v5 Affected: 0 , < V5_260904 (custom)
Create a notification for this product.
TP-Link Systems Inc. RE205 v4 Affected: 0 , < V4_260904 (custom)
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TP-Link Systems Inc. RE215 v1 Affected: 0 , < V1_260904 (custom)
Create a notification for this product.
TP-Link Systems Inc. RE220 v3 Affected: 0 , < V3_260904 (custom)
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TP-Link Systems Inc. RE230 v2 Affected: 0 , < V2_260904 (custom)
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TP-Link Systems Inc. RE300 v2 Affected: 0 , < V2_260904 (custom)
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TP-Link Systems Inc. RE305 v4 Affected: 0 , < V4_260904 (custom)
Create a notification for this product.
TP-Link Systems Inc. RE330 v1 Affected: 0 , < V1_260904 (custom)
Create a notification for this product.
TP-Link Systems Inc. RE335 v1 Affected: 0 , < V1_260904 (custom)
Create a notification for this product.
TP-Link Systems Inc. RE365 v2 Affected: 0 , < V2_260904 (custom)
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TP-Link Systems Inc. RE365 v3 Affected: 0 , < V3_260904 (custom)
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TP-Link Systems Inc. RE750C v4 Affected: 0 , < V4_260904 (custom)
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TP-Link Systems Inc. RE450 v4.8 Affected: 0 , < V4_260915 (custom)
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TP-Link Systems Inc. RE550 v1 Affected: 0 , < V1_260915 (custom)
Create a notification for this product.
TP-Link Systems Inc. RE315 v1 Affected: 0 , < V1_260904 rel3959 (custom)
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Credits
Show details on NVD website

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CVE-2026-109372 (GCVE-0-2026-109372)

Vulnerability from cvelistv5 – Published: 2026-10-12 16:05 – Updated: 2026-10-13 16:23
VLAI
Title
ZITADEL 3.0.0 before 4.19.2 Account Takeover via SAML Identity-Provider Confusion
Summary
ZITADEL 4.x before 4.19.2 and 3.x through 3.4.15 contains an authentication bypass in the SAML identity-provider intent callback, which verifies the assertion signature using the provider named in the request URL but resolves the user from the login intent without checking they match. Attackers with organization-administrator permission can register a SAML provider with their own signing key to obtain authenticated sessions as any user linked to another SAML provider on the instance, including in other organizations.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 16:22 UTC
CWE
  • CWE-287 - Improper Authentication
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
zitadel zitadel Affected: 3.0.0 , < 4.19.2 (semver)
Unaffected: 4.19.2 (semver)
    cpe:2.3:a:zitadel:zitadel:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-28 00:00
Show details on NVD website

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CVE-2026-109313 (GCVE-0-2026-109313)

Vulnerability from cvelistv5 – Published: 2026-10-12 16:05 – Updated: 2026-10-13 15:47
VLAI
Title
Grav Login Plugin 2.7.0 before 3.9.9 2FA Bypass via Remember-Me Cookie
Summary
Grav Login plugin 2.7.0 before 3.9.9 contains an authentication bypass vulnerability that allows attackers with a valid password to skip two-factor authentication through remember-me cookie restoration. Attackers can obtain a persistent remember-me cookie after the password step and restore it as a fully authorized session without completing the second factor.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 15:47 UTC
CWE
  • CWE-287 - Improper Authentication
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
getgrav grav-plugin-login Affected: 2.7.0 , < 3.9.9 (semver)
Unaffected: 3.9.9 (semver)
Create a notification for this product.
Date Public
2026-09-23 00:00
Show details on NVD website

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CVE-2026-109312 (GCVE-0-2026-109312)

Vulnerability from cvelistv5 – Published: 2026-10-12 16:05 – Updated: 2026-10-15 02:43
VLAI
Title
Grav Login Plugin 2.7.0 before 3.9.9 2FA Bypass via Profile Update Form
Summary
Grav Login plugin 2.7.0 before 3.9.9 contains an authentication bypass in processUserProfile(), which checks that the session user exists but not that a pending front-end 2FA session is fully authorized. Attackers with a victim's password who can publish a page form without an access rule can invoke update_user before completing 2FA to disable twofa_enabled and take over the account.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 02:43 UTC
CWE
  • CWE-287 - Improper Authentication
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
getgrav grav-plugin-login Affected: 2.7.0 , < 3.9.9 (semver)
Unaffected: 3.9.9 (semver)
Create a notification for this product.
Date Public
2026-09-23 00:00
Show details on NVD website

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CVE-2026-109236 (GCVE-0-2026-109236)

Vulnerability from cvelistv5 – Published: 2026-10-28 05:33 – Updated: 2026-10-28 16:10
VLAI
Title
Customer Email Verification for WooCommerce <= 2.8.2 - Unauthenticated Authentication Bypass via Predictable Email-Verification Token to 'cusomer_email_verify' Parameter
Summary
The Customer Email Verification for WooCommerce plugin for WordPress is vulnerable to Authentication Bypass via a Predictable Email-Verification Token in all versions up to, and including, 2.8.2. This is due to the `authenticate_user_by_email_link()` function — hooked on the `wp` action and triggered by the `cusomer_email_verify` GET parameter — lacking any capability check or nonce verification, while the `secret_code` it validates is generated as `md5(email . time())` and the `verify_otp_nonce` required to trigger token issuance via the `wp_ajax_nopriv_resend_otp` handler is emitted to every front-end visitor through `wp_localize_script`. This makes it possible for unauthenticated attackers to log in as a newly created, verified WooCommerce customer bound to an arbitrary email address — or to flip an existing account's `customer_email_verified` meta to verified — fully bypassing the plugin's core email-verification control. Exploitation requires the `cev_user_log` table to contain a `password` column, which is absent from the fresh-install schema shipped in version 2.8.2 but is present on sites upgraded from an older version where that column was defined.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-28 14:35 UTC
CWE
  • CWE-287 - Improper Authentication
Assigner
Wordfence CNA
Impacted products
Show details on NVD website

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CVE-2026-109114 (GCVE-0-2026-109114)

Vulnerability from cvelistv5 – Published: 2026-10-13 08:15 – Updated: 2026-10-13 13:16
VLAI
Title
AdithyaYelloju Restaurant-Management-System Login Form login.php improper authentication
Summary
A vulnerability has been found in AdithyaYelloju Restaurant-Management-System up to 7f0e7e84255e8fcfd488e83f8f91451bbbff6b9c. This vulnerability affects unknown code of the file User/login.php of the component Login Form. Such manipulation of the argument email/passwd leads to improper authentication. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available. The project was informed of the problem early through an issue report but has not responded yet.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 13:15 UTC
CWE
  • CWE-287 - Improper Authentication
Assigner
VulDB CNA
References
Impacted products
Vendor Product Version
AdithyaYelloju Restaurant-Management-System Affected: 7f0e7e84255e8fcfd488e83f8f91451bbbff6b9c
    cpe:2.3:a:adithyayelloju:restaurant-management-system:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-109082 (GCVE-0-2026-109082)

Vulnerability from cvelistv5 – Published: 2026-10-12 06:18 – Updated: 2026-10-15 15:16
VLAI
Title
Keycloak-services: keycloak-services: ciba confidential-only contract not enforced for public clients
Summary
A flaw was found in the Client-Initiated Backchannel Authentication CIBA implementation within the keycloak-services component of Keycloak. This component handles advanced authentication flows where a client initiates a login on behalf of a user. The issue occurs because Keycloak fails to verify that a client is authorized to use the CIBA flow, allowing public clients to bypass security requirements. An attacker could use this flaw to trick a user into approving a login request, eventually gaining full access to the users account without needing a client secret.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 13:11 UTC
CWE
  • CWE-287 - Improper Authentication
Assigner
redhat CNA
References
URL Tags
https://access.redhat.com/security/cve/CVE-2026-109082 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2549478 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version
Red Hat Red Hat Build of Keycloak     cpe:/a:redhat:build_keycloak:
Create a notification for this product.
Red Hat Red Hat Single Sign-On 7     cpe:/a:redhat:red_hat_single_sign_on:7
Create a notification for this product.
Date Public
2026-10-09 18:42
Show details on NVD website

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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.