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CWE-287 (认证机制不恰当) — Vulnerability Class 1744

1744 vulnerabilities classified as CWE-287 (认证机制不恰当). AI Chinese analysis included.

CWE-287 represents a critical authentication weakness where a system fails to adequately verify the identity of an actor claiming a specific identity. This flaw typically allows attackers to bypass security controls by exploiting insufficient verification mechanisms, enabling unauthorized access through stolen credentials, brute-force attacks, or session hijacking. When authentication logic is flawed, malicious entities can impersonate legitimate users, leading to severe data breaches and privilege escalation. Developers mitigate this risk by implementing robust, multi-factor authentication protocols and ensuring that identity verification processes are rigorous and resistant to common attack vectors. By strictly validating credentials against secure, hashed databases and employing adaptive security measures, organizations can significantly reduce the likelihood of unauthorized access, thereby protecting sensitive information and maintaining system integrity against sophisticated cyber threats.

MITRE CWE Description
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
Common Consequences (1)
Integrity, Confidentiality, Availability, Access Control Read Application Data, Gain Privileges or Assume Identity, Execute Unauthorized Code or Commands
This weakness can lead to the exposure of resources or functionality to unintended actors, possibly providing attackers with sensitive information or even execute arbitrary code.
Mitigations (1)
Architecture and Design Use an authentication framework or library such as the OWASP ESAPI Authentication feature.
Examples (2)
The following code intends to ensure that the user is already logged in. If not, the code performs authentication with the user-provided username and password. If successful, it sets the loggedin and user cookies to "remember" that the user has already logged in. Finally, the code performs administrator tasks if the logged-in user has the "Administrator" username, as recorded in the user cookie.
my $q = new CGI; if ($q->cookie('loggedin') ne "true") { if (! AuthenticateUser($q->param('username'), $q->param('password'))) { ExitError("Error: you need to log in first"); } else { # Set loggedin and user cookies. $q->cookie( -name => 'loggedin', -value => 'true' ); $q->cookie( -name => 'user', -value => $q->param('username') ); } } if ($q->cookie('user') eq "Administrator") { DoAdministratorTasks(); }
Bad · Perl
GET /cgi-bin/vulnerable.cgi HTTP/1.1 Cookie: user=Administrator Cookie: loggedin=true [body of request]
Attack
In January 2009, an attacker was able to gain administrator access to a Twitter server because the server did not restrict the number of login attempts [REF-236]. The attacker targeted a member of Twitter's support team and was able to successfully guess the member's password using a brute force attack by guessing a large number of common words. After gaining access as the member of the support st…
CVE ID Title CVSS Severity Published
CVE-2026-101986 Junos OS and Junos OS Evolved: J-Web permits pre-authentication CGI execution — Junos OS 9.8 Critical 2026-10-14
CVE-2026-101956 Junos OS: Unauthorized root command execution when J-Web is enabled — Junos OS 9.8 Critical 2026-10-14
CVE-2026-100169 Account pre-hijacking in the Prowler API through email based social account linking without verification — Prowler 7.6 High 2026-10-14
CVE-2026-102893 Zulip: OpenID Connect authentication ignores the email_verified claim — zulip 9.1 Critical 2026-10-14
CVE-2026-100163 Appointment Booking Plugin <= 5.7.2 - Unauthenticated Authentication Bypass to Customer Account Takeover via Insufficient Verification in create_wp_user_for_customer() username_exists Fallback — Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress 7.4 High 2026-10-14
CVE-2026-110097 Ikaros 1.2.0 through 1.2.5 TOTP Authentication Bypass via Temp Token — ikaros 8.1 High 2026-10-13
CVE-2026-53709 MCP Context Forge: Hardcoded default JWT_SECRET_KEY shipped in source and .env.example enables pre-authentication platform admin token forgery — mcp-context-forge 9.8 Critical 2026-10-13
CVE-2026-93907 IBM WebSphere Application Server is affected by a bypass authentication vulnerability — WebSphere Application Server 8.1 High 2026-10-13
CVE-2026-95680 IBM WebSphere Application Server is affected by an authorization bypass — WebSphere Application Server 8.0 High 2026-10-13
CVE-2026-109114 AdithyaYelloju Restaurant-Management-System Login Form login.php improper authentication — Restaurant-Management-System 7.3 High 2026-10-13
CVE-2026-108972 SourceCodester Human Resource Management System Employee Endpoint employee.php session_start improper authentication — Human Resource Management System 7.3 High 2026-10-13
CVE-2026-84312 Nginx UI: Casdoor SSO callback uses a constant `state` parameter (login CSRF) — nginx-ui 7.1 High 2026-10-12
CVE-2026-84313 Nginx UI: TOTP / passkey enrolment requires no re-authentication, enabling persistent account takeover — nginx-ui 8.8 High 2026-10-12
CVE-2026-108907 Netcore NR268 CGI Execution user_ok improper authentication — NR268 10.0 Critical 2026-10-12
CVE-2026-85962 Improper authentication in Progress MarkLogic Server SAML processing — MarkLogic Server 7.5 High 2026-10-12
CVE-2026-109372 ZITADEL 3.0.0 before 4.19.2 Account Takeover via SAML Identity-Provider Confusion — zitadel 8.7 High 2026-10-12
CVE-2026-109312 Grav Login Plugin 2.7.0 before 3.9.9 2FA Bypass via Profile Update Form — grav-plugin-login 8.1 High 2026-10-12
CVE-2026-109313 Grav Login Plugin 2.7.0 before 3.9.9 2FA Bypass via Remember-Me Cookie — grav-plugin-login 8.1 High 2026-10-12
CVE-2026-85958 Improper OAuth token validation in Progress MarkLogic Server — MarkLogic Server 7.5 High 2026-10-12
CVE-2026-109082 Keycloak-services: keycloak-services: ciba confidential-only contract not enforced for public clients — Red Hat Build of Keycloak 6.8 Medium 2026-10-12
CVE-2026-108865 AmoyLab Unla through 0.10.0 OAuth2 Authentication Bypass via /authorize — Unla 8.2 High 2026-10-11
CVE-2026-108522 Studio-Saelix Sencho Login Endpoint login improper authentication — Sencho 8.3 High 2026-10-11
CVE-2026-108707 Wukong_HRM through commit 186115e Authentication Bypass via ParamAspect — Wukong_HRM 9.8 Critical 2026-10-11
CVE-2026-108548 AstronRPA through 1.1.6 Authentication Bypass via Arbitrary Bearer Token — astron-rpa 7.3 High 2026-10-10
CVE-2026-104759 WPO365 | SEAMLESS WORDPRESS + MICROSOFT INTEGRATION (WPO365 | LOGIN) <= 44.1 - Unauthenticated Authentication Bypass via OIDC Nonce Replay via id_token Nonce Verification — WPO365 | SEAMLESS WORDPRESS + MICROSOFT INTEGRATION (WPO365 | LOGIN) 8.1 High 2026-10-10
CVE-2026-104803 WPCOM Member <= 1.7.27 - Unauthenticated Authentication Bypass via 'uuid' and 'code' Parameters on Social-Login Callback — WPCOM Member 9.8 Critical 2026-10-10
CVE-2026-104797 Advanced Form Integration <= 2.9.0 - Unauthenticated Unverified Password Change to Authentication Bypass / Privilege Escalation via Contact Form 7 Submission to Ultimate Member Update Profile Field Action — Advanced Form Integration — Connect Forms to 300+ Apps 8.1 High 2026-10-10
CVE-2026-104732 Advanced IP Blocker <= 8.13.13 - Unauthenticated Authentication Bypass via Missing Step-1 Binding to 2FA Login Handler — Advanced IP Blocker 9.8 Critical 2026-10-10
CVE-2026-62367 Vikunja: OIDC email-fallback account linking ignores email_verified, enabling local-account takeover — vikunja 7.5 High 2026-10-09
CVE-2026-108157 Pingvin Share X 0.19.0 before 1.22.0 Account Takeover via OAuth Email Linking — pingvin-share-x 8.1 High 2026-10-09

Vulnerabilities classified as CWE-287 (认证机制不恰当) represent 1744 CVEs. The CWE taxonomy describes the weakness; review individual CVEs for product-specific impact.