Weaknesses of type CWE-284

7,967 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-2019-9886CRITICALeClass platform allows user to download arbitrary files without authenticationEPSS 2.2%CVE-2019-10925—A vulnerability has been identified in SIMATIC MV400 family (All Versions < V7.0.6). An authenticated attacker could escalate privileges by EPSS 2.2%CVE-2024-0411MEDIUMDeShang DSMall HTTP GET Request install.php access controlEPSS 2.2%CVE-2019-1666MEDIUMCisco HyperFlex Unauthenticated Statistics Retrieval VulnerabilityEPSS 2.2%CVE-2019-1660MEDIUMCisco TelePresence Management Suite Simple Object Access Protocol VulnerabilityEPSS 2.2%CVE-2019-3927—Crestron AM-100 with firmware 1.6.0.2 and AM-101 with firmware 2.7.0.2 anyone can change the administrator and moderator passwords via the iEPSS 2.2%CVE-2019-7611—A permission issue was found in Elasticsearch versions before 5.6.15 and 6.6.1 when Field Level Security and Document Level Security are disEPSS 2.1%CVE-2019-3936—Crestron AM-100 with firmware 1.6.0.2 and AM-101 with firmware 2.7.0.2 is vulnerable to denial of service via a crafted request to TCP port EPSS 2.1%CVE-2021-3554CRITICALImproper Access Control vulnerability in the patchesUpdate APIEPSS 2.1%CVE-2025-23243MEDIUMNVIDIA Riva contains a vulnerability where a user could cause an improper access control issue. A successful exploit of this vulnerability mEPSS 2.1%CVE-2020-7545—A CWE-284:Improper Access Control vulnerability exists in EcoStruxureª and SmartStruxureª Power Monitoring and SCADA Software (see security EPSS 2.1%CVE-2019-11780HIGHImproper access control in the computed fields system of the framework of Odoo Community 13.0 and Odoo Enterprise 13.0 allows remote authentEPSS 2.1%CVE-2020-8207—Improper access control in Citrix Workspace app for Windows 1912 CU1 and 2006.1 causes privilege escalation and code execution when the autoEPSS 2.1%CVE-2021-36036HIGHMagento Commerce Media Gallery Upload Improper Access Control Could Lead To Remote Code ExecutionEPSS 2.1%CVE-2021-35221MEDIUMImportAlert Improper Access Control Tampering VulnerabilityEPSS 2.0%CVE-2022-39399LOWVulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Networking). Supported versionsEPSS 2.0%CVE-2025-15503MEDIUMSangfor Operation and Maintenance Management System common.jsp unrestricted uploadEPSS 2.0%CVE-2024-8805HIGHBlueZ HID over GATT Profile Improper Access Control Remote Code Execution VulnerabilityEPSS 2.0%CVE-2025-48734HIGHApache Commons BeanUtils: PropertyUtilsBean does not suppresses an enum's declaredClass property by defaultEPSS 2.0%CVE-2020-2506HIGHimproper access control vulnerability in HelpdeskEPSS 2.0%KEV