Falhas do tipo CWE-284

7.097 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-2023-33191MEDIUMkyverno seccomp control can be circumventedEPSS 0.5%CVE-2025-24193LOWThis issue was addressed with improved authentication. This issue is fixed in iOS 18.4 and iPadOS 18.4. An attacker with a USB-C connection EPSS 0.5%CVE-2026-3800MEDIUMSourceCodester/janobe Resort Reservation System controller.php doInsert unrestricted uploadEPSS 0.5%CVE-2025-66956CRITICALInsecure Access Control in Contact Plan, E-Mail, SMS and Fax components in Asseco SEE Live 2.0 allows remote attackers to access and executeEPSS 0.5%CVE-2021-44776MEDIUMspx_restservice SubNet_handler_func Broken Access ControlEPSS 0.5%CVE-2023-5299HIGHFuji Electric Tellus Lite V-Simulator Improper Access ControlEPSS 0.5%CVE-2026-45282MEDIUMNextcloud: Logged-in user bypasses share password and download restrictions on Text attachments via documentId leads to unauthorized file accessEPSS 0.5%CVE-2025-70064HIGHPHPGurukul Hospital Management System v4.0 contains a Privilege Escalation vulnerability. A low-privileged user (Patient) can directly accesEPSS 0.5%CVE-2024-20675MEDIUMMicrosoft Edge (Chromium-based) Security Feature Bypass VulnerabilityEPSS 0.5%CVE-2024-52514MEDIUMNextcloud Server allows users to copy folder that contain files that are blocked by the files access controlEPSS 0.5%CVE-2024-42775CRITICALAn Incorrect Access Control vulnerability was found in /admin/add_room_controller.php in Kashipara Hotel Management System v1.0, which allowEPSS 0.5%CVE-2024-42772HIGHAn Incorrect Access Control vulnerability was found in /admin/rooms.php in Kashipara Hotel Management System v1.0, which allows an unauthentEPSS 0.5%CVE-2026-9352MEDIUMNousResearch hermes-agent Messaging Gateway local.py _make_run_env information disclosureEPSS 0.5%CVE-2026-79577CRITICALAn issue in the /cas/login component of sso-master v1.0.0 allows attackers to authenticate into the application without a password via sendiEPSS 0.5%CVE-2026-44277CRITICALA improper access control vulnerability in Fortinet FortiAuthenticator 8.0.2, FortiAuthenticator 8.0.0, FortiAuthenticator 6.6.0 through 6.6EPSS 0.5%CVE-2026-5601MEDIUMAcrel Electrical Prepaid Cloud Platform Backup File bin.rar information disclosureEPSS 0.5%CVE-2026-19356MEDIUMMingSoft MCMS ms-mdiy list information disclosureEPSS 0.5%CVE-2024-28016MEDIUMImproper Access Controlvulnerability in NEC Corporation Aterm WG1800HP4, WG1200HS3, WG1900HP2, WG1200HP3, WG1800HP3, WG1200HS2, WG1900HP, WGEPSS 0.5%CVE-2026-48898HIGHJoomla! Core - [20260513] - Privilege escalation through com_users batch taskEPSS 0.5%CVE-2026-42163CRITICALMahara before 25.04.5 and 26.04.0 is vulnerable to unauthorized access to internal accounts via Learning Tools Interoperability (LTI) under EPSS 0.5%