Falhas do tipo CWE-284

7.169 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-2026-76281MEDIUMImproper Access Control in Splunk EnterpriseEPSS 0.2%CVE-2025-43263HIGHThe issue was addressed with improved checks. This issue is fixed in Xcode 26. An app may be able to read and write files outside of its sanEPSS 0.2%CVE-2024-23238HIGHAn access issue was addressed with improved access restrictions. This issue is fixed in macOS Sonoma 14.4. An app may be able to edit NVRAM EPSS 0.2%CVE-2026-74934HIGHSite isolation issue in the Graphics: CanvasWebGL componentEPSS 0.2%CVE-2025-43334MEDIUMThis issue was addressed with additional entitlement checks. This issue is fixed in macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS Tahoe 2EPSS 0.2%CVE-2025-43335MEDIUMThe issue was addressed by adding additional logic. This issue is fixed in macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS Tahoe 26.1. An aEPSS 0.2%CVE-2026-61071LOWVulnerability in the PeopleSoft Enterprise FIN Engineering Argentina product of Oracle PeopleSoft (component: Engineering). The supported EPSS 0.2%CVE-2023-42853MEDIUMA logic issue was addressed with improved checks. This issue is fixed in macOS Sonoma 14.1, macOS Monterey 12.7.1, macOS Ventura 13.6.1. An EPSS 0.2%CVE-2025-43322MEDIUMA logic issue was addressed with improved checks. This issue is fixed in macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS Tahoe 26.1. An appEPSS 0.2%CVE-2025-67259MEDIUMA Broken Access Control vulnerability exists in ClassroomIO v0.1.13 where an authenticated low-privileged "student" user can access unauthorEPSS 0.2%CVE-2024-37355HIGHImproper access control in some Intel(R) Graphics software may allow an authenticated user to potentially enable escalation of privilege viaEPSS 0.2%CVE-2023-33872MEDIUMImproper access control in the Intel Support android application all verions may allow an authenticated user to potentially enable informatiEPSS 0.2%CVE-2025-52166MEDIUMIncorrect access control in Software GmbH Agorum core open v11.9.2 & v11.10.1 allows authenticated attackers to escalate privileges to AdminEPSS 0.2%CVE-2026-12261MEDIUMImproper Access Control in nltk/nltkEPSS 0.2%CVE-2025-0033MEDIUMImproper access control within AMD SEV-SNP could allow an admin privileged attacker to write to the RMP during SNP initialization, potentialEPSS 0.2%CVE-2025-57428MEDIUMDefault credentials in Each Italy Wireless Mini Router WIRELESS-N 300M v28K.MiniRouter.20190211 allows attackers to gain access to the debugEPSS 0.2%CVE-2021-25749HIGHrunAsNonRoot logic bypass for Windows containersEPSS 0.2%CVE-2026-60929LOWVulnerability in the Oracle Public Sector Financials product of Oracle E-Business Suite (component: Internal Operations). Supported versionEPSS 0.2%CVE-2026-40204LOWNone None None No publicly available exploits are known.EPSS 0.2%CVE-2023-43748HIGHImproper access control in some Intel(R) GPA Framework software installers before version 2023.3 may allow an authenticated user to potentiaEPSS 0.2%