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-2020-15102MEDIUMImproper access control on dashboard form in PrestaShopEPSS 0.7%CVE-2024-7921MEDIUMAnhui Deshun Intelligent Technology Jieshun JieLink+ JSOTC2016 GetDataList access controlEPSS 0.7%CVE-2022-38935HIGHAn issue was discovered in NiterForum version 2.5.0-beta in /src/main/java/cn/niter/forum/api/SsoApi.java and /src/main/java/cn/niter/forum/EPSS 0.7%CVE-2026-31874CRITICALTaskosaur Improper Role Assignment via Parameter Manipulation in User RegistrationEPSS 0.7%CVE-2021-26909LOWAutomox Agent Guessable S3 Bucket EndpointEPSS 0.7%CVE-2024-7920MEDIUMAnhui Deshun Intelligent Technology Jieshun JieLink+ JSOTC2016 GetParkInThroughDeivces access controlEPSS 0.7%CVE-2018-17921—SAGA1-L8B with any firmware versions prior to A0.10 are vulnerable to an attack that may allow an attacker to force-pair the device without EPSS 0.7%CVE-2024-21418HIGHSoftware for Open Networking in the Cloud (SONiC) Elevation of Privilege VulnerabilityEPSS 0.7%CVE-2026-46840CRITICALVulnerability in Oracle REST Data Services (component: Backend-as-a-Service). Supported versions that are affected are 24.2.0-26.1.0. EasilEPSS 0.7%CVE-2025-21213MEDIUMSecure Boot Security Feature Bypass VulnerabilityEPSS 0.7%CVE-2023-22805MEDIUMCVE-2023-22805EPSS 0.7%CVE-2023-26770CRITICALTaskCafe 0.3.2 lacks validation in the Cookie value. Any unauthenticated attacker who knows a registered UserID can change the password of tEPSS 0.7%CVE-2024-12951MEDIUM1000 Projects Portfolio Management System MCA add_personal_details.php unrestricted uploadEPSS 0.7%CVE-2024-21071CRITICALVulnerability in the Oracle Workflow product of Oracle E-Business Suite (component: Admin Screens and Grants UI). Supported versions that aEPSS 0.7%CVE-2025-51539MEDIUMEzGED3 3.5.0 contains an unauthenticated arbitrary file read vulnerability due to improper access control and insufficient input validation EPSS 0.7%CVE-2023-30583HIGHfs.openAsBlob() can bypass the experimental permission model when using the file system read restriction with the `--allow-fs-read` flag in EPSS 0.7%CVE-2023-24028CRITICALIn MISP 2.4.167, app/Controller/Component/ACLComponent.php has incorrect access control for the decaying import function.EPSS 0.7%CVE-2022-46354MEDIUMA vulnerability has been identified in SCALANCE X204RNA (HSR) (All versions < V3.2.7), SCALANCE X204RNA (PRP) (All versions < V3.2.7), SCALAEPSS 0.7%CVE-2020-3413MEDIUMCisco Webex Meetings Scheduled Meeting Template Deletion VulnerabilityEPSS 0.7%CVE-2020-3412MEDIUMCisco Webex Meetings Scheduled Meeting Template Creation VulnerabilityEPSS 0.7%