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-2026-24899HIGHFleet Windows MDM Azure AD JWT Authentication BypassEPSS 0.4%CVE-2026-83864MEDIUMWindows NTFS Information Disclosure VulnerabilityEPSS 0.4%CVE-2026-4894MEDIUMAuthentication bypass in multiple products from Frappe TechnologiesEPSS 0.4%CVE-2025-12430HIGHObject lifecycle issue in Media in Google Chrome prior to 142.0.7444.59 allowed a remote attacker to perform UI spoofing via a crafted HTML EPSS 0.4%CVE-2025-14327HIGHSpoofing issue in the Downloads Panel componentEPSS 0.4%CVE-2024-37430MEDIUMWordPress Patreon WordPress plugin <= 1.9.0 - Image Protection Bypass vulnerabilityEPSS 0.4%CVE-2026-86391MEDIUMDell PowerProtect Data Domain Management Center, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.1EPSS 0.4%CVE-2024-41432MEDIUMAn IP Spoofing vulnerability has been discovered in Likeshop up to 2.5.7.20210811. This issue allows an attacker to replace their real IP adEPSS 0.4%CVE-2023-51543MEDIUMWordPress RegistrationMagic plugin <= 5.2.5.0 - IP Limit Bypass vulnerabilityEPSS 0.4%CVE-2025-56449HIGHA security vulnerability was identified in Obsidian Scheduler's REST API 5.0.0 thru 6.3.0. If an account is locked out due to not enrolling EPSS 0.4%CVE-2026-8960HIGHSpoofing issue in WebExtensionsEPSS 0.4%CVE-2025-62235HIGHApache Mynewt NimBLE: Incorrect handling of SMP Security Request could lead to undesirable pairingEPSS 0.4%CVE-2025-12414CRITICALLooker account compromise via punycode homograph attackEPSS 0.4%CVE-2026-103512MEDIUMTicket host-binding bypass via spoofed client IP in P4SearchEPSS 0.4%CVE-2023-42889MEDIUMThe issue was addressed with improved checks. This issue is fixed in macOS Sonoma 14.1, macOS Monterey 12.7.1, macOS Ventura 13.6.1. An app EPSS 0.4%CVE-2026-19121HIGHMultiple Vulnerabilities in IBM API ConnectEPSS 0.4%CVE-2026-106465MEDIUMMissing HelloVerifyRequest cookie validation in the NetX Secure DTLS serverEPSS 0.4%CVE-2026-40460MEDIUMNGINX ngx_quic_module vulnerabilityEPSS 0.4%CVE-2024-32708LOWWordPress Maintenance Mode plugin <= 3.0.1 - IP Bypass vulnerabilityEPSS 0.4%CVE-2026-77903CRITICALMicrosoft Dataverse Elevation of Privilege VulnerabilityEPSS 0.4%