Fallos del tipo CWE-287

2855 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-2026-110863HIGHBetter Auth @better-auth/sso before 1.7.3 Authentication Bypass via Personal SSO ProvidersEPSS 0.3%CVE-2026-28471MEDIUMOpenClaw 2026.1.14-1 < 2026.2.2 - Allowlist Bypass via displayName and Cross-Homeserver localpart Matching in Matrix PluginEPSS 0.3%CVE-2026-102369HIGHUnauthenticated Remote Code Execution via MacTool Command Injection in TP-Link Tapo C120 & C200EPSS 0.3%CVE-2025-25450MEDIUMAn issue in TAAGSOLUTIONS GmbH MyTaag v.2024-11-24 and before allows a remote attacker to escalate privileges via the deactivation of the acEPSS 0.3%CVE-2026-3194LOWChia Blockchain RPC Server Master Passphrase get_private_key missing authenticationEPSS 0.3%CVE-2026-94612HIGHauthentik: Authentication bypass via assertion confusion in SAML sourcesEPSS 0.3%CVE-2026-92227HIGHJoomla! Core - [20260914] - Core - MFA Authentication Bypass through rememberme cookies in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3EPSS 0.3%CVE-2025-25452MEDIUMAn issue in TAAGSOLUTIONS GmbH MyTaag v.2024-11-24 and before allows a remote attacker to escalate privileges via the "/user" endpointEPSS 0.3%CVE-2024-6174HIGHWhen a non-x86 platform is detected, cloud-init grants root access to a hardcoded url with a local IP address. To prevent this, cloud-init dEPSS 0.3%CVE-2026-104105MEDIUMFileRise: TOTP codes are not single-use — valid 6-digit code can be replayed within its window (capture-replay)EPSS 0.3%CVE-2023-52210MEDIUMWordPress Product Delivery Date for WooCommerce – Lite plugin <= 2.7.0 - Broken Access Control vulnerabilityEPSS 0.3%CVE-2026-105832MEDIUMEspoCRM before 10.0.6 Two-Factor Authentication Bypass on Unauthenticated RoutesEPSS 0.3%CVE-2024-20301MEDIUMA vulnerability in Cisco Duo Authentication for Windows Logon and RDP could allow an authenticated, physical attacker to bypass secondary auEPSS 0.3%CVE-2026-79870CRITICALAuthentication Bypass leads to Unauthorized Access in AOS-8EPSS 0.3%CVE-2026-79868CRITICALAuthentication Bypass Vulnerabilities lead to Complete System Compromise in AOS-8EPSS 0.3%CVE-2018-25030LOWMirmay Secure Private Browser / File Manager Auto Lock improper authenticationEPSS 0.3%CVE-2025-2572MEDIUMWhatsUp Gold NmConfigurationManager.exe database manipulation vulnerabilityEPSS 0.3%CVE-2026-110135HIGHOTP Login & Register Woocommerce < 2.7.3 - Unauthenticated Account Takeover via OTP Brute ForceEPSS 0.3%CVE-2026-59208HIGHn8n: Cross-Issuer Token Exchange Account Binding via Subject-Only Identity ResolutionEPSS 0.3%CVE-2025-3634MEDIUMMoodle: moodle allows course self-enrolment before completing mfaEPSS 0.3%