Fallos del tipo CWE-287

2857 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-2026-103319MEDIUMOPay Payment Gateway for WooCommerce <= 2.5.5 - Unauthenticated Payment Confirmation Forgery via Empty Default Secret KeyEPSS 0.2%CVE-2026-103306MEDIUMiKhokha Payment Gateway < 3.0.4 - Unauthenticated Order Payment Forgery via CallbackEPSS 0.2%CVE-2026-103299MEDIUMnexi Alpha Bank for WooCommerce <= 2.2.0 - Unauthenticated Payment Confirmation Forgery via Empty Shared SecretEPSS 0.2%CVE-2026-9084MEDIUMMISP OIDC authentication bypass via automatic email-based account linking under insecure IdP configurationsEPSS 0.2%CVE-2026-81740MEDIUMPaytm Payment Gateway < 2.8.9 - Unauthenticated Order Status Manipulation via Payment CallbackEPSS 0.2%CVE-2026-111240—Apache TomEE: Authentication bypass for accounts without a stored password in SQL login moduleEPSS 0.2%CVE-2026-94270MEDIUMDeema Payment Gateway <= 1.1.2 - Unauthenticated Payment Bypass and Order Manipulation via WebhookEPSS 0.2%CVE-2022-37931HIGHA vulnerability in NetBatch-Plus software allows unauthorized access to the applicationEPSS 0.2%CVE-2022-45118MEDIUMTelephony in communication subsystem sends public events with personal data, but the permission is not set.EPSS 0.2%CVE-2023-28073HIGH Dell BIOS contains an improper authentication vulnerability. A locally authenticated malicious user may potentially exploit this vulnerabilEPSS 0.2%CVE-2026-86781MEDIUMSSL Zen < 4.7.40 - Subscriber+ TLS Private Key DisclosureEPSS 0.2%CVE-2026-112037MEDIUMdiem-project diem Google Analytics Client gapi.class.php certificate validationEPSS 0.2%CVE-2022-33862MEDIUMImproper access control mechanism in IPPEPSS 0.2%CVE-2025-22236HIGHCVE-2025-22236 salt advisoryEPSS 0.2%CVE-2025-64517MEDIUMsudo-rs doesn't record authenticating user properly in timestampEPSS 0.2%CVE-2026-102364MEDIUMmall4j through 4.0 Improper Authentication Accepts Storefront Tokens on Admin APIEPSS 0.2%CVE-2026-95680HIGHIBM WebSphere Application Server is affected by an authorization bypassEPSS 0.2%CVE-2026-11717CRITICALAn authentication bypass vulnerability exists in the generic opaque token validation path (validateOpaqueToken) of googleapis/mcp-toolbox. EPSS 0.2%CVE-2026-103332MEDIUMPayex Payment Gateway for WooCommerce <= 1.2.10 - Unauthenticated Payment Confirmation Forgery via Empty-Default Secret KeyEPSS 0.2%CVE-2026-109553HIGHGitea SSH certificate principal impersonation of other usersEPSS 0.2%