Weaknesses of type CWE-287

2,850 results

Falha na autenticação ou verificação insuficiente de identidade

Quando um usuário, sistema ou aplicação afirma ser alguém (ou algo), o software não valida adequadamente essa identidade antes de conceder acesso ou executar ações sensíveis. O risco é claro: um atacante se passa por outra pessoa e obtém privilégios ou dados que não deveria ter.

Example

Um app que aceita um token JWT sem verificar a assinatura, confiando apenas no nome de usuário no payload. Um atacante modifica o token para elevar seu nível de acesso e o sistema acredita, pois nunca validou a autenticidade real do token.

How to mitigate

Implemente autenticação robusta: valide credenciais em backend seguro, use protocolos padrão (OAuth 2.0, SAML, Kerberos), verifique integridade de tokens (assinatura criptográfica), implemente MFA para operações críticas e nunca confie em dados do cliente sem validação no servidor.

CVE-2020-15240HIGHRegression in JWT Signature ValidationEPSS 0.8%CVE-2022-32514CRITICALA CWE-287: Improper Authentication vulnerability exists that could allow an attacker to gain control of the device when logging into a web pEPSS 0.8%CVE-2022-21692MEDIUMImproper Access Control in OnionshareEPSS 0.8%CVE-2026-84840MEDIUMtsi-coop tsi-dpdp-cms Bootstrap Setup Endpoint InterceptingFilter.java missing authenticationEPSS 0.8%CVE-2023-38372MEDIUMIBM Watson IoT Platform information disclosureEPSS 0.8%CVE-2022-23505MEDIUMPassport-wsfed-saml2 vulnerable to Authentication Bypass for WSFed authenticationEPSS 0.8%CVE-2021-32753HIGHWeak password in API gateway in EdgeX Foundry Edinburgh, Fuji, Geneva, and Hanoi releases allows remote attackers to obtain authentication token via dictionary-based password attack when OAuth2 authentication method is enabled.EPSS 0.8%CVE-2026-41574CRITICALNhost Vulnerable to Account Takeover via OAuth Email Verification BypassEPSS 0.8%CVE-2024-11186CRITICALOn affected versions of the CloudVision Portal, improper access controls could enable a malicious authenticated user to take broader actions on managed EOS devices than intended. This advisory impacts the Arista CloudVision Portal products when run on-premEPSS 0.8%CVE-2020-25183HIGHMedtronic MyCareLink Smart Improper AuthenticationEPSS 0.8%CVE-2026-63456CRITICALAuthentication bypass via spoofed HTTP headers Orchestrator REST APIEPSS 0.8%CVE-2024-3263CRITICALImproper authentication in YMS VIS ProEPSS 0.8%CVE-2023-46249CRITICALauthentik potential installation takeover when default admin user is deletedEPSS 0.8%CVE-2023-43805HIGHNexkey allows users to bypass authentication of Bull dashboardEPSS 0.8%CVE-2026-12795MEDIUMBerriAI litellm SSO Debug Flow ui_sso.py json.dumps missing authenticationEPSS 0.8%CVE-2023-39196MEDIUMApache Ozone: Missing mutual TLS authentication in one of the service internal Ozone Storage Container Manager endpointsEPSS 0.8%CVE-2020-14380—An account takeover flaw was found in Red Hat Satellite 6.7.2 onward. A potential attacker with proper authentication to the relevant externEPSS 0.8%CVE-2025-15099MEDIUMsimstudioai sim CRON Secret internal.ts improper authenticationEPSS 0.8%CVE-2025-3268MEDIUMqinguoyi TinyWebServer http_conn.cpp improper authenticationEPSS 0.8%CVE-2023-24093CRITICALAn access control issue in H3C A210-G A210-GV100R005 allows attackers to authenticate without a password.EPSS 0.8%