Falhas do tipo CWE-284

7.111 resultados

Controle de acesso inadequado a recursos

A aplicação falha em validar ou aplica incorretamente as restrições de acesso, permitindo que usuários não autorizados acessem dados ou funcionalidades que deveriam estar protegidas. É uma das fragilidades mais comuns em segurança: o código não verifica corretamente quem está pedindo acesso e simplesmente concede.

Exemplo

Um e-commerce que permite acessar o perfil de qualquer cliente substituindo o ID na URL (ex: /usuario/123 → /usuario/124), sem validar se o usuário autenticado é o dono daquele perfil. Um atacante consegue ver dados pessoais, histórico de compras e endereços de outras pessoas.

Como mitigar

Implemente verificações explícitas em cada acesso a recurso: autentique o usuário, identifique qual recurso ele quer acessar, e valide se as permissões dele cobrem aquele recurso específico. Use listas de controle de acesso (ACLs) ou papéis (RBAC/ABAC) consistentemente em toda a API ou aplicação, nunca deixando a segurança implícita.

CVE-2026-77553CRITICALA malicious actor with access to the network and low privileges could exploit an Improper Access Control vulnerability found in UniFi AccessEPSS 0.4%CVE-2026-83069HIGHVulnerability in the Oracle Fusion Middleware Control product of Oracle Fusion Middleware (component: Framework). Supported versions that aEPSS 0.4%CVE-2026-84668HIGHJenkins SAML Plugin 4.618.v441a_27fa_46d2 and earlier allows overwriting the SAML identity provider metadata file through Stapler data bindiEPSS 0.4%CVE-2026-83058CRITICALVulnerability in the Oracle Internet Directory product of Oracle Fusion Middleware (component: OID LDAP Server). Supported versions that arEPSS 0.4%CVE-2026-83038CRITICALVulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: TopLink Integration). Supported versions that aEPSS 0.4%CVE-2026-83164HIGHVulnerability in the Oracle Customer Interaction History product of Oracle E-Business Suite (component: Outcome-Result). Supported versionsEPSS 0.4%CVE-2026-77536CRITICALA malicious actor with access to the network and low privileges could exploit an Improper Access Control vulnerability found in certain deviEPSS 0.4%CVE-2026-77534CRITICALA malicious actor with access to the network and low privileges could exploit an Improper Access Control vulnerability found in certain deviEPSS 0.4%CVE-2026-83056CRITICALVulnerability in the Oracle Internet Directory product of Oracle Fusion Middleware (component: OID LDAP Server). Supported versions that arEPSS 0.4%CVE-2026-72561HIGHPeppermint Lab Peppermint - Broken Access ControlEPSS 0.4%CVE-2026-83180HIGHVulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure). Supported versions that are affEPSS 0.4%CVE-2025-7152MEDIUMCampcodes Advanced Online Voting System candidates_add.php unrestricted uploadEPSS 0.4%CVE-2025-7210MEDIUMcode-projects/Fabian Ros Library Management System profile_update.php unrestricted uploadEPSS 0.4%CVE-2026-83153HIGHVulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure). Supported versions that are affEPSS 0.4%CVE-2026-83209HIGHVulnerability in the Siebel CRM Development product of Oracle Siebel CRM (component: Workflow). Supported versions that are affected are 17EPSS 0.4%CVE-2026-83055CRITICALVulnerability in the Oracle Internet Directory product of Oracle Fusion Middleware (component: OID LDAP Server). Supported versions that arEPSS 0.4%CVE-2026-83125HIGHVulnerability in the Oracle Report Manager product of Oracle E-Business Suite (component: Internal Operations). Supported versions that areEPSS 0.4%CVE-2026-83090HIGHVulnerability in the Oracle Spares Management product of Oracle E-Business Suite (component: Internal Operations). Supported versions that EPSS 0.4%CVE-2025-7151MEDIUMCampcodes Advanced Online Voting System voters_add.php unrestricted uploadEPSS 0.4%CVE-2023-47865MEDIUMUsername and Icon override can be used by members when Hardened Mode is enabledEPSS 0.4%