Falhas do tipo CWE-284

7.967 resultados

Controle de acesso inadequado a recursos

A aplicação falha em validar ou aplica incorretamente as restrições de acesso, permitindo que usuários não autorizados acessem dados ou funcionalidades que deveriam estar protegidas. É uma das fragilidades mais comuns em segurança: o código não verifica corretamente quem está pedindo acesso e simplesmente concede.

Exemplo

Um e-commerce que permite acessar o perfil de qualquer cliente substituindo o ID na URL (ex: /usuario/123 → /usuario/124), sem validar se o usuário autenticado é o dono daquele perfil. Um atacante consegue ver dados pessoais, histórico de compras e endereços de outras pessoas.

Como mitigar

Implemente verificações explícitas em cada acesso a recurso: autentique o usuário, identifique qual recurso ele quer acessar, e valide se as permissões dele cobrem aquele recurso específico. Use listas de controle de acesso (ACLs) ou papéis (RBAC/ABAC) consistentemente em toda a API ou aplicação, nunca deixando a segurança implícita.

CVE-2026-33109CRITICALAzure Managed Instance for Apache Cassandra Remote Code Execution VulnerabilityEPSS 0.7%CVE-2024-31207MEDIUMVite's `server.fs.deny` did not deny requests for patterns with directoriesEPSS 0.7%CVE-2024-39697HIGHphonenumber panics on parsing crafted phonenumber inputsEPSS 0.7%CVE-2022-28758HIGHZoom On-Premise Deployments: Improper Access ControlEPSS 0.7%CVE-2023-22487HIGHPost mentions can be used to read any post on the forum without access controlEPSS 0.7%CVE-2023-39228MEDIUMImproper access control for some Intel Unison software may allow an unauthenticated user to potentially enable denial of service via networkEPSS 0.7%CVE-2022-3066MEDIUMAn issue has been discovered in GitLab affecting all versions starting from 10.0 before 15.2.5, all versions starting from 15.3 before 15.3.EPSS 0.7%CVE-2024-38223MEDIUMWindows Initial Machine Configuration Elevation of Privilege VulnerabilityEPSS 0.7%CVE-2023-20261MEDIUMA vulnerability in the web UI of Cisco Catalyst SD-WAN Manager could allow an authenticated, remote attacker to retrieve arbitrary files froEPSS 0.7%CVE-2026-33062HIGHfree5GC NRF Discovery EncodeGroupId Function Panics on Malformed group-id-list ParameterEPSS 0.7%CVE-2022-44932HIGHAn access control issue in Tenda A18 v15.13.07.09 allows unauthenticated attackers to access the Telnet service.EPSS 0.7%CVE-2025-0702MEDIUMJoeyBling bootplus SysFileController.java unrestricted uploadEPSS 0.7%CVE-2022-0170MEDIUMImproper Access Control in chocobozzz/peertubeEPSS 0.7%CVE-2025-1555MEDIUMhzmanyun Education and Training System saveImage unrestricted uploadEPSS 0.7%CVE-2021-46304MEDIUMA vulnerability has been identified in CP-8000 MASTER MODULE WITH I/O -25/+70°C (All versions), CP-8000 MASTER MODULE WITH I/O -40/+70°C (AlEPSS 0.7%CVE-2022-27673HIGHInsufficient access controls in the AMD Link Android app may potentially result in information disclosure.EPSS 0.7%CVE-2021-25954MEDIUMImproper Access Control in “Dolibarr”EPSS 0.7%CVE-2022-40036MEDIUMAn issue was discovered in Rawchen blog-ssm v1.0 allows an attacker to obtain sensitive user information by bypassing permission checks via EPSS 0.7%CVE-2026-35425HIGHAzure API Management (APIM) Remote Code Execution VulnerabilityEPSS 0.7%CVE-2021-34627MEDIUMWP Upload Restriction <= 2.2.3 - Missing Access Control in getSelectedMimeTypesByRole functionEPSS 0.7%