Falhas do tipo CWE-287

2.850 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-2025-45777CRITICALAn issue in the OTP mechanism of Chavara Family Welfare Centre Chavara Matrimony Site v2.0 allows attackers to bypass authentication via supEPSS 0.8%CVE-2026-79395CRITICALAn improper authentication vulnerability in the WS-Security (wsse:UsernameToken) verification routine within the Sofia IPC daemon in XiongmaEPSS 0.8%CVE-2026-91002MEDIUMstamparm maltrail Blacklist Endpoint httpd.py _blacklist missing authenticationEPSS 0.8%CVE-2026-32174HIGHAzure Bot Service Elevation of Privilege VulnerabilityEPSS 0.8%CVE-2026-16720CRITICALMultiple Vulnerabilities in IBM API ConnectEPSS 0.8%CVE-2019-15620—Improper access control in Nextcloud Talk 6.0.3 leaks the existance and the name of private conversations when linked them to another sharedEPSS 0.8%CVE-2022-29893HIGHImproper authentication in firmware for Intel(R) AMT before versions 11.8.93, 11.22.93, 11.12.93, 12.0.92, 14.1.67, 15.0.42, 16.1.25 may allEPSS 0.8%CVE-2018-17928—The product CMS-770 (Software Versions 1.7.1 and prior)is vulnerable that an attacker can read sensitive configuration files by bypassing thEPSS 0.8%CVE-2024-7401HIGHClient Enrollment Process BypassEPSS 0.8%CVE-2021-25466MEDIUMImproper scheme check vulnerability in Samsung Internet prior to version 15.0.2.47 allows attackers to perform Man-in-the-middle attack and EPSS 0.8%CVE-2021-20238—It was found in OpenShift Container Platform 4 that ignition config, served by the Machine Config Server, can be accessed externally from clEPSS 0.8%CVE-2025-63216CRITICALThe Itel DAB Gateway (IDGat build c041640a) is vulnerable to Authentication Bypass due to improper JWT validation across devices. Attackers EPSS 0.8%CVE-2025-7875MEDIUMMetasoft 美特软件 MetaCRM debug.jsp improper authenticationEPSS 0.8%CVE-2026-15192MEDIUMmettle sendportal APIv1 Webhooks mailjet missing authenticationEPSS 0.8%CVE-2021-32543MEDIUMSysJust CTS Web - Broken AuthenticationEPSS 0.8%CVE-2022-24748MEDIUMIncorrect Authentication in shopwareEPSS 0.8%CVE-2026-15038CRITICALInfiniteWP Client < 1.13.6 - Unauthenticated Administrator Account Takeover on MultisiteEPSS 0.8%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 0.8%CVE-2026-87924MEDIUMRizwan17 inventory-management-system Invoice Generation invoice_bill.php missing authenticationEPSS 0.8%CVE-2026-25893CRITICALFUXA Unauthenticated Remote Code Execution via Admin JWT MintingEPSS 0.8%