Fallos del tipo CWE-284

7151 resultados

Controle de acesso insuficiente ou ausente

A aplicação não valida corretamente quem pode acessar determinado recurso (arquivo, API, função, dados), permitindo que usuários não autorizados façam operações que deveriam estar bloqueadas. É um dos problemas mais comuns em segurança: sem autenticação e autorização robustas, qualquer um consegue fazer o que não deveria.

Ejemplo

Um admin panel acessível via /admin sem login real, ou uma API que retorna dados de qualquer usuário basta mudar um ID na URL sem verificar se você tem permissão. Outro caso: arquivo de configuração com credenciais exposto publicamente porque a aplicação não define permissões de leitura no servidor.

Cómo mitigar

Implemente autenticação forte (sessões, tokens JWT) e autorização em toda operação sensível — verifique explicitamente se o usuário logado tem permissão antes de retornar dados ou executar ações. Use listas de controle de acesso (ACL) ou Role-Based Access Control (RBAC), e nunca confie em IDs de usuário vindos do cliente sem validação server-side.

CVE-2026-41487MEDIUMLangfuse: Improper role-based-access control in Langfuse LLM connection management allowed users of role “member” to retrieve stored LLM provider API keysEPSS 0.3%CVE-2019-18309—A vulnerability has been identified in SPPA-T3000 MS3000 Migration Server (All versions). An attacker with local access to the MS3000 ServerEPSS 0.3%CVE-2026-37073MEDIUMIncorrect access control in /vfm-admin/ajax/sendfiles.php in Veno File Manager Project 4.4.9 allows an unauthenticated attacker to send emaiEPSS 0.3%CVE-2025-55371MEDIUMIncorrect access control in the component /controller/PersonController.java of jshERP v3.5 allows unauthorized attackers to obtain all the iEPSS 0.3%CVE-2026-83145HIGHVulnerability in the Siebel Apps - Customer Order Management product of Oracle Siebel CRM (component: Order Management). Supported versionsEPSS 0.3%CVE-2024-55025MEDIUMIncorrect access control in the VNC component of Weintek cMT-3072XH2 easyweb v2.1.53, OS v20231011 allows unauthorized attackers to access tEPSS 0.3%CVE-2023-43814LOWExposure of poll options and votes to unauthorized users in DiscourseEPSS 0.3%CVE-2024-23488LOWFiles of archived channels accessible with the “Allow users to view archived channels” option disabledEPSS 0.3%CVE-2026-7021MEDIUMSmythOS sre Connector Service utils.ts information disclosureEPSS 0.3%CVE-2019-12670MEDIUMCisco IOS XE Software IOx Guest Shell Namespace Protection VulnerabilityEPSS 0.3%CVE-2025-65779HIGHAn issue was discovered in Wekan The Open Source kanban board system up to version 18.15, fixed in 18.16. Unauthenticated attackers can updaEPSS 0.3%CVE-2021-4037MEDIUMKernel: security regression for cve-2018-13405EPSS 0.3%CVE-2026-65758HIGHJoomla Extension - tassos.gr - Sensitive data exposure in Convert Forms extension 2.5.0-5.2.2EPSS 0.3%CVE-2026-60528HIGHVulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Console). Supported versions that are affected EPSS 0.3%CVE-2026-61143MEDIUMVulnerability in the Oracle Communications Convergent Charging Controller product of Oracle Communications (component: Prov IF). Supported EPSS 0.3%CVE-2024-24776LOW Incorrect Authorization leads to Channel Member Count LeakEPSS 0.3%CVE-2026-55544HIGHNextCRM has BOLA/IDOR in MCP Campaign Tools that Allows Cross-User Campaign Disclosure and TamperingEPSS 0.3%CVE-2025-61543HIGHA Host Header Injection vulnerability exists in the password reset functionality of CraftMyCMS 4.0.2.2. The system uses `$_SERVER['HTTP_HOSTEPSS 0.3%CVE-2025-61118HIGHmCarFix Motorists App version 2.3 (package name com.skytop.mcarfix), developed by Paniel Mwaura, contains improper access control vulnerabilEPSS 0.3%CVE-2026-29077HIGHFrappe: Broken Access Control in DocShareEPSS 0.3%