Falhas do tipo CWE-287

2.857 resultados

Autenticação Insuficiente ou Ausente

Quando um usuário ou sistema afirma ser quem diz que é, a aplicação não valida (ou valida mal) essa identidade antes de conceder acesso. Isso permite que um atacante se passe por outra pessoa sem fornecer credenciais válidas, obtendo privilégios indevidos.

Exemplo

Um sistema que aceita login apenas verificando um campo de e-mail na sessão (sem senha), ou uma API que confia em um identificador de usuário enviado no header HTTP sem validar um token assinado. Um atacante simplesmente muda o valor e acessa dados de terceiros.

Como mitigar

Implemente autenticação robusta: exija senha forte + MFA quando possível, valide tokens com assinatura criptográfica, revoque sessões expiradas, e nunca confie em dados controlados pelo cliente. Teste autenticação em cada endpoint crítico.

CVE-2025-46590MEDIUMBypass vulnerability in the network search instruction authentication module Impact: Successful exploitation of this vulnerability can bypasEPSS 0.2%CVE-2026-97874—Apache TomEE: Authentication bypass for Hessian endpoints in non-root web applicationsEPSS 0.2%CVE-2022-22283LOWImproper session management vulnerability in Samsung Health prior to 6.20.1.005 prevents logging out from Samsung Health App.EPSS 0.2%CVE-2026-40205MEDIUMAn attacker that holds an OAuth2 token granting only part of the required scopes can authenticate, because when more than one scope is requiEPSS 0.2%CVE-2026-45283MEDIUMNextcloud: Files Lock app allows users to lock and unlock files of other usersEPSS 0.2%CVE-2026-86890MEDIUMA logic issue was addressed with improved checks. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27. An attacker with phEPSS 0.2%CVE-2026-48897HIGHJoomla! Core - [20260512] - MFA Authentication BypassEPSS 0.2%CVE-2025-31267MEDIUMAn authentication issue was addressed with improved state management. This issue is fixed in App Store Connect 3.0. An attacker with physicaEPSS 0.2%CVE-2026-31946CRITICALOpenOLAT: Authentication bypass via forged JWT in OIDC implicit flowEPSS 0.2%CVE-2026-102128HIGHKiteworks Email Protection Gateway Improper AuthenticationEPSS 0.2%CVE-2026-49502HIGHDell PowerFlex Manager, version(s) prior to 5.1.0.1, contain(s) an Improper Authentication vulnerability. An unauthenticated attacker with aEPSS 0.2%CVE-2026-123798HIGHSuperTokens Core: SAML XML Signature Wrapping authentication bypass — any IdP user can authenticate as any other userEPSS 0.2%CVE-2025-25451MEDIUMAn issue in TAAGSOLUTIONS GmbH MyTaag v.2024-11-24 and before allows a physically proximate attacker to escalate privileges via the "2fa_autEPSS 0.2%CVE-2026-120999HIGHImproper authentication lets Google sign-in and confirmation links sign users in to accounts registered with their email address by someone elseEPSS 0.2%CVE-2024-39767MEDIUMSpoofed push notifications from malicious serverEPSS 0.2%CVE-2026-95746HIGHAuthentication Bypass in the API Endpoint of HPE Networking Fabric ComposerEPSS 0.2%CVE-2022-28790MEDIUMImproper authentication in Link to Windows Service prior to version 2.3.04.1 allows attacker to lock the device. The patch adds proper calleEPSS 0.2%CVE-2024-12310HIGHBypass of Login Screen on Shared Kiosk WorkstationsEPSS 0.2%CVE-2026-76730MEDIUMImproper PAPI Packet handling leads to unauthorized access in HPE Networking Instant ON APsEPSS 0.2%CVE-2023-20924MEDIUMIn (TBD) of (TBD), there is a possible way to bypass the lockscreen due to Biometric Auth Failure. This could lead to local escalation of prEPSS 0.2%