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-2021-22941CRITICALImproper Access Control in Citrix ShareFile storage zones controller before 5.11.20 may allow an unauthenticated attacker to remotely comproEPSS 53.6%KEVCVE-2017-5254—In version 3.5 and prior of Cambium Networks ePMP firmware, the non-administrative users 'installer' and 'home' have the capability of changEPSS 52.4%CVE-2023-4169MEDIUMRuijie RG-EW1200G Administrator Password set_passwd access controlEPSS 49.2%CVE-2012-6435HIGHRockwell Automation ControlLogix PLC Improper Access ControlEPSS 42.8%CVE-2024-21644HIGHpyLoad unauthenticated flask configuration leakageEPSS 42.4%CVE-2022-23513MEDIUMPi-Hole/AdminLTE vulnerable due to improper access control in queryads endpointEPSS 42.3%CVE-2025-31486MEDIUMVite allows server.fs.deny to be bypassed with .svg or relative pathsEPSS 40.5%CVE-2024-39943CRITICALrejetto HFS (aka HTTP File Server) 3 before 0.52.10 on Linux, UNIX, and macOS allows OS command execution by remote authenticated users (if EPSS 39.5%CVE-2012-6442HIGHRockwell Automation ControlLogix PLC Improper Access ControlEPSS 35.3%CVE-2024-24824HIGHgraylog2-server vulnerable to instantiation of arbitrary classes triggered by API requestEPSS 34.7%CVE-2024-55963MEDIUMAn issue was discovered in Appsmith before 1.51. A user on Appsmith that doesn't have admin permissions can trigger the restart API on AppsmEPSS 32.9%CVE-2016-1000031CRITICALApache Commons FileUpload before 1.3.3 DiskFileItem File Manipulation Remote Code ExecutionEPSS 32.7%CVE-2024-10124CRITICALVayu Blocks – Gutenberg Blocks for WordPress & WooCommerce <= 1.1.1 - Missing Authorization to Unauthenticated Arbitrary Plugin Installation/ActivationEPSS 32.7%CVE-2021-24146—Modern Events Calendar Lite < 5.16.5 - Unauthenticated Events ExportEPSS 31.0%CVE-2023-22960HIGHLexmark products through 2023-01-10 have Improper Control of Interaction Frequency.EPSS 28.0%CVE-2021-4119MEDIUMImproper Access Control in bookstackapp/bookstackEPSS 26.9%CVE-2024-27497HIGHLinksys E2000 Ver.1.0.06 build 1 is vulnerable to authentication bypass via the position.js file.EPSS 26.7%CVE-2020-8196MEDIUMImproper access control in Citrix ADC and Citrix Gateway versions before 13.0-58.30, 12.1-57.18, 12.0-63.21, 11.1-64.14 and 10.5-70.18 and CEPSS 26.3%KEVCVE-2024-13106MEDIUMD-Link DIR-816 A2 IP QoS form2IPQoSTcAdd access controlEPSS 26.0%CVE-2024-25830CRITICALF-logic DataCube3 v1.0 is vulnerable to Incorrect Access Control due to an improper directory access restriction. An unauthenticated, remoteEPSS 24.0%