Weaknesses of type CWE-287

2,850 results

Falha na autenticação ou verificação insuficiente de identidade

Quando um usuário, sistema ou aplicação afirma ser alguém (ou algo), o software não valida adequadamente essa identidade antes de conceder acesso ou executar ações sensíveis. O risco é claro: um atacante se passa por outra pessoa e obtém privilégios ou dados que não deveria ter.

Example

Um app que aceita um token JWT sem verificar a assinatura, confiando apenas no nome de usuário no payload. Um atacante modifica o token para elevar seu nível de acesso e o sistema acredita, pois nunca validou a autenticidade real do token.

How to mitigate

Implemente autenticação robusta: valide credenciais em backend seguro, use protocolos padrão (OAuth 2.0, SAML, Kerberos), verifique integridade de tokens (assinatura criptográfica), implemente MFA para operações críticas e nunca confie em dados do cliente sem validação no servidor.

CVE-2023-3597MEDIUMKeycloak: secondary factor bypass in step-up authenticationEPSS 0.6%CVE-2026-53709CRITICALMCP Context Forge: Hardcoded default JWT_SECRET_KEY shipped in source and .env.example enables pre-authentication platform admin token forgeryEPSS 0.6%CVE-2024-45113HIGHColdFusion | Improper Authentication (CWE-287)EPSS 0.6%CVE-2026-17203HIGHIBM Application Runtime Expert (ARE) for IBM i is vulnerable to a user gaining elevated privileges and sensitive information [, ].EPSS 0.6%CVE-2026-88007CRITICALTraefik HTTP/3 Backend NTLM Connection ReuseEPSS 0.6%CVE-2026-87016HIGHOpen WebUI: Sign-in as another user via wildcard characters in the OAuth subject claim on SQLiteEPSS 0.6%CVE-2026-16857HIGHVulnerabilities in IBM AIX and PowerVM VIOSEPSS 0.6%CVE-2024-24771HIGHOpen Forms potential multi-factor authentication bypassEPSS 0.6%CVE-2026-53761HIGHFrappe CRM: Authentication Bypass via Logged Invitation Keys in crm/apiEPSS 0.6%CVE-2025-60772CRITICALImproper authentication in the web-based management interface of NETLINK HG322G V1.0.00-231017, allows a remote unauthenticated attacker to EPSS 0.6%CVE-2024-0002CRITICALA condition exists in FlashArray Purity whereby an attacker can employ a privileged account allowing remote access to the array.EPSS 0.6%CVE-2026-10697HIGHMFA Bypass in MOVEit TransferEPSS 0.6%CVE-2024-2450HIGHMattermost versions 8.1.x before 8.1.10, 9.2.x before 9.2.6, 9.3.x before 9.3.2, and 9.4.x before 9.4.3 fail to correctly verify account ownEPSS 0.6%CVE-2024-10327HIGHA vulnerability in Okta Verify for iOS versions 9.25.1 (beta) and 9.27.0 (including beta) allows push notification responses through the iOSEPSS 0.6%CVE-2026-110669MEDIUMcemtan sar2html sar2html.py deleteAll missing authenticationEPSS 0.6%CVE-2024-37893MEDIUMMFA bypass in oauth flow in Firefly IIIEPSS 0.6%CVE-2023-39345HIGHUnauthorized Access to Private Fields in User Registration API in strapiEPSS 0.6%CVE-2019-1758MEDIUMCisco IOS Software Catalyst 6500 Series 802.1x Authentication Bypass VulnerabilityEPSS 0.6%CVE-2024-41197CRITICALAn issue in Ocuco Innovation - INVCLIENT.EXE v2.10.24.5 allows attackers to bypass authentication and escalate privileges to Administrator vEPSS 0.6%CVE-2024-41198CRITICALAn issue in Ocuco Innovation - REPORTS.EXE v2.10.24.13 allows attackers to bypass authentication and escalate privileges to Administrator viEPSS 0.6%