Weaknesses of type CWE-284

7,070 results

Controle de acesso inadequado a recursos

A aplicação falha em validar ou impõe regras insuficientes para determinar quem pode acessar um recurso (arquivo, API, dados, funcionalidade). Um usuário não autorizado consegue contornar essas restrições e acessar o que não deveria, seja por falta de autenticação, autorização fraca ou lógica de controle de acesso bugada.

Example

Um sistema de gestão de RH permite que qualquer funcionário logado acesse `/api/salarios/{id}` substituindo o ID na URL. Sem verificar se o usuário é gestor ou RH, a API retorna dados salariais de qualquer pessoa da empresa. Um dev junior consegue ver quanto ganha o CTO.

How to mitigate

Implemente verificação explícita de permissões antes de qualquer acesso: confirme autenticação (quem é), autorização (o que pode fazer) e aplique o princípio do menor privilégio. Use listas de controle de acesso (ACL), roles bem definidos e sempre valide no backend, nunca confie em dados do cliente.

CVE-2024-0712HIGHByzoro Smart S150 Management Platform userattea.php access controlEPSS 3.9%CVE-2021-42359HIGHWP DSGVO Tools (GDPR) <= 3.1.23 Unauthenticated Arbitrary Post DeletionEPSS 3.8%CVE-2019-15999MEDIUMCisco Data Center Network Manager JBoss EAP Unauthorized Access VulnerabilityEPSS 3.6%CVE-2019-10950—Fujifilm FCR Capsula X/ Carbon X/ FCR XC-2, model versions CR-IR 357 FCR Carbon X, CR-IR 357 FCR XC-2, FCR-IR 357 FCR Capsula X provide inseEPSS 3.6%CVE-2018-14804—Emerson AMS Device Manager v12.0 to v13.5. A specially crafted script may be run that allows arbitrary remote code execution.EPSS 3.5%CVE-2026-20843HIGHWindows Routing and Remote Access Service (RRAS) Elevation of Privilege VulnerabilityEPSS 3.5%CVE-2023-31242HIGHAn authentication bypass vulnerability exists in the OAS Engine functionality of Open Automation Software OAS Platform v18.00.0072. A speciaEPSS 3.5%CVE-2025-27738MEDIUMWindows Resilient File System (ReFS) Information Disclosure VulnerabilityEPSS 3.4%CVE-2025-59434CRITICALCritical Multi-Tenant Variable Disclosure in Flowise Cloud via Custom JavaScript FunctionEPSS 3.4%CVE-2021-35213HIGHOrion User setting Improper Access Control Privilege Escalation VulnerabilityEPSS 3.4%CVE-2026-21238HIGHWindows Ancillary Function Driver for WinSock Elevation of Privilege VulnerabilityEPSS 3.4%CVE-2019-3935—Crestron AM-100 with firmware 1.6.0.2 and AM-101 with firmware 2.7.0.2 allows anyone to act as a moderator to a slide show via crafted HTTP EPSS 3.3%CVE-2025-21197MEDIUMWindows NTFS Information Disclosure VulnerabilityEPSS 3.2%CVE-2026-2699CRITICALEAR vulnerability in Progress ShareFile Storage Zones Controller (SZC)EPSS 3.2%CVE-2020-7561—A CWE-306: Missing Authentication for Critical Function vulnerability exists in Easergy T300 (with firmware 2.7 and older) that could cause EPSS 3.2%CVE-2025-24076HIGHMicrosoft Windows Cross Device Service Elevation of Privilege VulnerabilityEPSS 3.2%CVE-2025-26645HIGHRemote Desktop Client Remote Code Execution VulnerabilityEPSS 3.1%CVE-2023-0916MEDIUMSourceCodester Auto Dealer Management System Users.php access controlEPSS 3.1%CVE-2025-55694HIGHWindows Error Reporting Service Elevation of Privilege VulnerabilityEPSS 3.0%CVE-2026-4194MEDIUMD-Link DNS-1550-04 system_mgr.cgi cgi_set_wto access controlEPSS 3.0%