Fallos del tipo CWE-287

2809 resultados

Autenticação inadequada ou ausente

A aplicação não valida ou valida de forma insuficiente a identidade de quem tenta acessá-la. Quando um usuário diz ser quem é, o sistema acredita sem verificar corretamente, permitindo que atacantes se façam passar por outros usuários ou contas legítimas.

Ejemplo

Um sistema que aceita login apenas com nome de usuário, sem senha. Ou uma API que confia no header 'User-ID' enviado pelo cliente sem validar se aquele usuário realmente existe ou tem sessão ativa. Um atacante simplesmente altera o header e acessa dados de outra conta.

Cómo mitigar

Implemente autenticação robusta: exija múltiplos fatores (senha forte + MFA), valide credenciais contra base de dados segura, use sessões com token assinado e com expiração, nunca confie em dados enviados pelo cliente como prova de identidade. Revise regularmente logs de acesso para detectar abusos.

CVE-2026-5270CRITICALAuthentication Bypass in Navigator and Blue Planet ProductsEPSS 0.7%CVE-2025-6528MEDIUM70mai M300 RTSP Live Video Stream Endpoint 12 improper authenticationEPSS 0.7%CVE-2025-5906MEDIUMcode-projects Laundry System data missing authenticationEPSS 0.7%CVE-2026-17158CRITICALMultiple Vulnerabilities in IBM API ConnectEPSS 0.7%CVE-2022-31164HIGHTovy before v0.7.51 vulnerable to users logging in as and impersonating other usersEPSS 0.7%CVE-2020-7293CRITICALWeb Gateway (MWG) - Privilege Escalation vulnerabilityEPSS 0.7%CVE-2026-8305MEDIUMOpenClaw bluebubbles Webhook monitor.ts handleBlueBubblesWebhookRequest improper authenticationEPSS 0.7%CVE-2026-59104CRITICALUgCS server HCI authentication bypass with empty credentialsEPSS 0.7%CVE-2023-35940HIGHGLPI vulnerable to unauthenticated access to Dashboard dataEPSS 0.7%CVE-2026-85702MEDIUMramon-victor freegpt-webui Backend Conversation API backend.py _conversation missing authenticationEPSS 0.7%CVE-2026-65375HIGHThe issue was addressed with improved authentication. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.6. An EPSS 0.7%CVE-2023-51472CRITICALWordPress Checkout Mestres WP plugin <= 7.1.9.7 - Unauthenticated Account Takeover vulnerabilityEPSS 0.7%CVE-2022-42951HIGHAn issue was discovered in Couchbase Server 6.5.x and 6.6.x before 6.6.6, 7.x before 7.0.5, and 7.1.x before 7.1.2. During the start-up of aEPSS 0.7%CVE-2026-42041MEDIUMAxios: Authentication Bypass via Prototype Pollution Gadget in `validateStatus` Merge StrategyEPSS 0.7%CVE-2025-52856CRITICALVioStorEPSS 0.7%CVE-2022-43690MEDIUMConcrete CMS (formerly concrete5) below 8.5.10 and between 9.0.0 and 9.1.2 did not use strict comparison for the legacy_salt so that limitedEPSS 0.7%CVE-2023-51405HIGHWordPress BookingPress plugin <= 1.0.74 - Booking Price Manipulation vulnerabilityEPSS 0.7%CVE-2026-74894CRITICALopenssl_encrypt before 1.4.0 Authentication Bypass via Bearer TokenEPSS 0.7%CVE-2023-51482CRITICALWordPress Eazy Plugin Manager plugin <= 4.1.2 - Auth. Arbitrary Options Update lead to RCE vulnerabilityEPSS 0.7%CVE-2026-95271MEDIUMdgtlmoon changedetection.io Authentication Hook flask_app.py check_authentication improper authenticationEPSS 0.7%