Weaknesses of type CWE-290

721 results

Autenticação insuficiente contra falsificação de identidade

Ocorre quando o mecanismo de autenticação falha em validar corretamente a identidade do usuário ou cliente, permitindo que um atacante se passe por outra pessoa. A implementação não implementa verificações robustas (como criptografia, assinaturas digitais ou desafios aleatórios), deixando a autenticação vulnerável a spoofing.

Example

Um sistema de API que valida usuários apenas pelo campo 'nome de usuário' em um cabeçalho HTTP sem usar token, sessão ou assinatura criptográfica — um atacante altera o header e acessa dados de outros usuários. Ou um protocolo que aceita certificados autoassinados sem verificar a cadeia de confiança, autenticando servidores falsos.

How to mitigate

Use mecanismos de autenticação estabelecidos e testados: tokens JWT com assinatura, OAuth 2.0, ou mTLS. Sempre valide criptograficamente a identidade do cliente, nunca confie em cabeçalhos ou cookies não assinados. Implemente desafios multi-fator e revogue credenciais comprometidas rapidamente.

CVE-2026-45074HIGHSymfony: Cas2Handler Derives CAS service URL from Client Host Header → Cross-Service Ticket ReplayEPSS 0.5%CVE-2026-33433MEDIUMTraefik Vulnerable to BasicAuth/DigestAuth Identity Spoofing via Non-Canonical headerFieldEPSS 0.5%CVE-2026-30975HIGHSonarr Authentication Bypass vulnerabilityEPSS 0.5%CVE-2024-28228MEDIUMIn JetBrains YouTrack before 2024.1.25893 creation comments on behalf of an arbitrary user in HelpDesk was possibleEPSS 0.5%CVE-2026-19117CRITICALDelinea Secret Server FIDO2 credential registration authentication bypass vulnerabilityEPSS 0.5%CVE-2026-92929MEDIUMOpenEye Apex Network Video Recorder (NVR) firmware 3.2.9.376 trusts an X-Forwarded-For header supplied by an arbitrary client when determiniEPSS 0.5%CVE-2026-24372HIGHWordPress Subscriptions for WooCommerce plugin <= 1.8.10 - Bypass Vulnerability vulnerabilityEPSS 0.5%CVE-2024-21746MEDIUMWordPress Wp Ultimate Review plugin <= 2.3.6 - IP limit Bypass vulnerabilityEPSS 0.5%CVE-2024-20299MEDIUMCisco Adaptive Security Appliance and Firepower Threat Defense AnyConnect Access Control List Bypass VulnerabilityEPSS 0.5%CVE-2026-69183HIGHMonkeytype: Rate-limit and anti-brute-force controls bypassable via spoofed HTTP headers (forgotPasswordEmail/verificationEmail mail bombing and badAuth bypass)EPSS 0.5%CVE-2024-20297MEDIUMCisco Adaptive Security Appliance and Firepower Threat Defense AnyConnect Access Control List Bypass VulnerabilityEPSS 0.5%CVE-2024-30480LOWWordPress CGC Maintenance Mode plugin <= 1.2 - IP Filtering Bypass vulnerabilityEPSS 0.5%CVE-2026-39858HIGHTraefik: Forwarded alias spoofing top pre-auth decision bypassEPSS 0.5%CVE-2026-55210HIGHJoplin: SAML SSO account takeover via email-based account linking (missing is_external check in ssoLogin)EPSS 0.5%CVE-2024-1555HIGHWhen opening a website using the `firefox://` protocol handler, SameSite cookies were not properly respected. This vulnerability affects FirEPSS 0.5%CVE-2022-48349CRITICALThe control component has a spoofing vulnerability. Successful exploitation of this vulnerability may affect confidentiality and availabilitEPSS 0.5%CVE-2026-40575CRITICALOAuth2 Proxy has an Authentication Bypass via X-Forwarded-Uri Header SpoofingEPSS 0.5%CVE-2026-34457CRITICALOAuth2 Proxy: Health Check User-Agent Matching Bypasses Authentication in auth_request ModeEPSS 0.5%CVE-2026-113703CRITICALSuggestArr before 3.0.0 Authentication Bypass via X-Forwarded-For SpoofingEPSS 0.5%CVE-2026-21894MEDIUMn8n's Missing Stripe-Signature Verification Allows Unauthenticated Forged WebhooksEPSS 0.5%