Weaknesses of type CWE-284

7,074 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-2021-0232HIGHParagon Active Assurance: Authentication bypass vulnerability in Control CenterEPSS 1.0%CVE-2020-8278—Improper access control in Nextcloud Social app version 0.3.1 allowed to read posts of any user.EPSS 1.0%CVE-2021-1478MEDIUMCisco Unified Communications Manager Denial of Service VulnerabilityEPSS 1.0%CVE-2025-58726HIGHWindows SMB Server Elevation of Privilege VulnerabilityEPSS 1.0%CVE-2025-10093MEDIUMD-Link DIR-852 Device Configuration getcfg.php phpcgi_main information disclosureEPSS 1.0%CVE-2020-26072HIGHCisco IoT Field Network Director SOAP API Authorization Bypass VulnerabilityEPSS 1.0%CVE-2022-0731MEDIUMImproper Access Control (IDOR) in dolibarr/dolibarrEPSS 1.0%CVE-2025-2548MEDIUMD-Link DIR-618/DIR-605L formSetDomainFilter access controlEPSS 1.0%CVE-2025-2549MEDIUMD-Link DIR-618/DIR-605L formSetPassword access controlEPSS 1.0%CVE-2022-27185CRITICALA denial of service vulnerability exists in the confctl_set_master_wlan functionality of TCL LinkHub Mesh Wifi MS1G_00_01.00_14. A speciallyEPSS 1.0%CVE-2022-27660CRITICALA denial of service vulnerability exists in the confctl_set_guest_wlan functionality of TCL LinkHub Mesh Wi-Fi MS1G_00_01.00_14. A speciallyEPSS 1.0%CVE-2023-40060HIGH2FA/MFA Bypass Vulnerability in Serv-U 15.4 and 15.4 Hotfix 1EPSS 1.0%CVE-2025-23048CRITICALApache HTTP Server: mod_ssl access control bypass with session resumptionEPSS 1.0%CVE-2021-34696MEDIUMCisco ASR 900 and ASR 920 Series Aggregation Services Routers Access Control List Bypass VulnerabilityEPSS 1.0%CVE-2024-42919CRITICALeScan Management Console 14.0.1400.2281 is vulnerable to Incorrect Access Control via acteScanAVReport.EPSS 1.0%CVE-2021-34754MEDIUMCisco Firepower Threat Defense Software Ethernet Industrial Protocol Policy Bypass VulnerabilitiesEPSS 1.0%CVE-2021-1591MEDIUMCisco Nexus 9500 Series Switches Access Control List Bypass VulnerabilityEPSS 1.0%CVE-2021-24845—Improved Include Page <= 1.2 - Contributor+ Arbitrary Posts/Pages AccessEPSS 1.0%CVE-2023-24058MEDIUMBooked Scheduler 2.5.5 allows authenticated users to create and schedule events for any other user via a modified userId value to reservatioEPSS 1.0%CVE-2026-49049HIGHJoomla Extension - joomshaper.com - Unauthenticated access to Helix3 template ajax handlerEPSS 1.0%