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-2021-47923CRITICALOpenCart 3.0.3.8 Session Fixation via OCSESSID CookieEPSS 0.4%CVE-2026-88011MEDIUMTraefik: ForwardAuth identity spoofing via dot-form header aliasEPSS 0.4%CVE-2025-6188HIGHOn affected platforms running Arista EOS, maliciously formed UDP packets with source port 3503 may be accepted by EOS. UDP Port 3503 is associated with LspPing Echo Reply. This can result in unexpected behaviors, especially for UDP based services that do nEPSS 0.4%CVE-2026-32045HIGHOpenClaw < 2026.2.21 - Authentication Bypass in HTTP Gateway Routes via Tokenless Tailscale AuthEPSS 0.4%CVE-2024-11701MEDIUMThe incorrect domain may have been displayed in the address bar during an interrupted navigation attempt. This could have led to user confusEPSS 0.4%CVE-2023-37865MEDIUMWordPress IP2Location Country Blocker plugin <= 2.29.1 - IP Bypass Vulnerability vulnerabilityEPSS 0.4%CVE-2025-43503MEDIUMAn inconsistent user interface issue was addressed with improved state management. This issue is fixed in Safari 26.1, iOS 18.7.2 and iPadOSEPSS 0.4%CVE-2025-0440MEDIUMInappropriate implementation in Fullscreen in Google Chrome on Windows prior to 132.0.6834.83 allowed a remote attacker to perform UI spoofiEPSS 0.4%CVE-2026-118653MEDIUMEcho: Rate Limiter Bypass via Spoofed X-Forwarded-For Header in Default ConfigurationEPSS 0.4%CVE-2024-33917MEDIUMWordPress WTI Like Post plugin <= 1.4.6 - IP Restriction Bypass Vulnerability vulnerabilityEPSS 0.4%CVE-2026-54782CRITICALCoreWCF: Authentication bypass in CoreWCF SAML 1.1 / 2.0 token signature validationEPSS 0.4%CVE-2023-41591CRITICALAn issue in Open Network Foundation ONOS v2.7.0 allows attackers to create fake IP/MAC addresses and potentially execute a man-in-the-middleEPSS 0.4%CVE-2026-75120CRITICALRemote Code Execution (RCE) vulnerability identified in the OpenText™ EnCase SAFE AgentsEPSS 0.4%CVE-2023-30950MEDIUMCVE-2023-30950 EPSS 0.4%CVE-2024-25595MEDIUMWordPress Defender Security plugin <= 4.4.1 - IP Restriction Bypass vulnerabilityEPSS 0.4%CVE-2026-111691CRITICALWIMOOR through commit ec86736 Authentication Bypass via Forged X-USERINFO HeaderEPSS 0.4%CVE-2023-30464HIGHCoreDNS through 1.10.1 enables attackers to achieve DNS cache poisoning and inject fake responses via a birthday attack.EPSS 0.4%CVE-2025-60538MEDIUMA lack of rate limiting in the login page of shiori v1.7.4 and below allows attackers to bypass authentication via a brute force attack.EPSS 0.4%CVE-2026-58488MEDIUMHedgeDoc: Rate-limit bypass via CF-Connecting-IP header spoofingEPSS 0.4%CVE-2026-81777MEDIUMWordPress Essential Addons for Elementor plugin <= 6.8.0 - Bypass vulnerability vulnerabilityEPSS 0.4%