Fallos del tipo CWE-284

7097 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-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%