Fallos del tipo CWE-287

2806 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-2026-79395CRITICALAn improper authentication vulnerability in the WS-Security (wsse:UsernameToken) verification routine within the Sofia IPC daemon in XiongmaEPSS 0.8%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-2026-16720CRITICALMultiple Vulnerabilities in IBM API ConnectEPSS 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-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-2022-35726MEDIUMWordPress Video Gallery plugin <= 1.3.4.5 - Broken Authentication vulnerabilityEPSS 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-2026-87924MEDIUMRizwan17 inventory-management-system Invoice Generation invoice_bill.php missing authenticationEPSS 0.8%CVE-2026-86293MEDIUMSourceCodester Simple Traffic Offense System Deletion Endpoint delete-user.php missing authenticationEPSS 0.8%CVE-2026-25893CRITICALFUXA Unauthenticated Remote Code Execution via Admin JWT MintingEPSS 0.8%CVE-2026-82547MEDIUMLinux Foundation Magma Registration Complete Message amf_fsm.cpp improper authenticationEPSS 0.8%