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-2026-77903CRITICALMicrosoft Dataverse Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2023-41134MEDIUMWordPress Antispam Bee plugin <= 2.11.3 - Country IP Restriction Bypass vulnerabilityEPSS 0.4%CVE-2023-51542MEDIUMWordPress Branda plugin <= 3.4.14 - IP Restriction Bypass vulnerabilityEPSS 0.4%CVE-2025-31122CRITICALscratch-coding-hut.github.io Login Links Generation vulnerabilityEPSS 0.4%CVE-2024-8908MEDIUMInappropriate implementation in Autofill in Google Chrome prior to 129.0.6668.58 allowed a remote attacker to perform UI spoofing via a crafEPSS 0.4%CVE-2024-55925HIGHAPI Security bypass through header manipulationEPSS 0.4%CVE-2024-20363MEDIUMMultiple Cisco products are affected by a vulnerability in the Snort Intrusion Prevention System (IPS) rule engine that could allow an unautEPSS 0.4%CVE-2026-8651LOWIPv6 Loopback Spoof via Trusted Host Header Bypasses Origin Check in MOVEit TransferEPSS 0.4%CVE-2024-7745MEDIUMMulti-Factor Authentication Bypass in Progress WS_FTP ServerEPSS 0.4%CVE-2025-58595MEDIUMWordPress All In One Login plugin <= 2.0.8 - Bypass Vulnerability vulnerabilityEPSS 0.4%CVE-2024-10125MEDIUMLack of JWT issuer and signer validationEPSS 0.4%CVE-2026-22734HIGHCloud Foundry UAA SAML 2.0 Signature BypassEPSS 0.4%CVE-2026-64875MEDIUMJoomla Extension - regularlabs.com - IP spoofing vulnerability in GeoIP extensionEPSS 0.4%CVE-2025-5067MEDIUMInappropriate implementation in Tab Strip in Google Chrome prior to 137.0.7151.55 allowed a remote attacker to perform UI spoofing via a craEPSS 0.4%CVE-2026-73995MEDIUMWordPress User Registration plugin <= 5.2.6 - Broken Authentication vulnerabilityEPSS 0.4%CVE-2024-43944LOWWordPress Maintenance & Coming Soon Redirect Animation plugin <= 2.3.3 - Bypass Vulnerability vulnerabilityEPSS 0.4%CVE-2025-25055MEDIUMAuthentication bypass by spoofing issue exists in FileMegane versions above 1.0.0.0 prior to 3.4.0.0, which may lead to user impersonation. EPSS 0.4%CVE-2025-26696HIGHCrafted email message incorrectly shown as being encryptedEPSS 0.4%CVE-2025-59699MEDIUMEntrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7 (patched in 13.6.12 (LTS) and 13.9.0 (STS)), allow a physiEPSS 0.4%CVE-2025-3029HIGHURL Bar Spoofing via non-BMP Unicode charactersEPSS 0.4%