Falhas do tipo CWE-284

7.165 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-2022-48615MEDIUMAn improper access control vulnerability exists in a Huawei datacom product. Attackers can exploit this vulnerability to obtain partial deviEPSS 0.3%CVE-2026-20279CRITICALCisco IOS XR Software Security Hardening Release: September 2026EPSS 0.3%CVE-2026-62488MEDIUMVulnerability in the Oracle Contracts Integration product of Oracle E-Business Suite (component: Internal Operations). Supported versions tEPSS 0.3%CVE-2024-20911LOWVulnerability in Oracle Audit Vault and Database Firewall (component: Firewall). Supported versions that are affected are 20.1-20.9. DifficEPSS 0.3%CVE-2026-61324HIGHVulnerability in the Oracle Advanced Benefits product of Oracle E-Business Suite (component: Internal Operations). The supported version tEPSS 0.3%CVE-2026-83076MEDIUMVulnerability in the Oracle HR Intelligence product of Oracle E-Business Suite (component: Internal Operations). Supported versions that arEPSS 0.3%CVE-2026-20332CRITICALCisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Improper Access Control VulnerabilitiesEPSS 0.3%CVE-2025-55795LOWThe openml/openml.org web application version v2.0.20241110 uses incremental user IDs and insufficient email ownership verification during eEPSS 0.3%CVE-2026-83242HIGHVulnerability in the Oracle Commerce Guided Search / Oracle Commerce Experience Manager product of Oracle Commerce (component: Experience MaEPSS 0.3%CVE-2022-39915LOWImproper access control vulnerability in Calendar prior to versions 11.6.08.0 in Android Q(10), 12.2.11.3000 in Android R(11), 12.3.07.2000 EPSS 0.3%CVE-2026-60214HIGHVulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.2.EPSS 0.3%CVE-2026-45658HIGHWindows BitLocker Security Feature Bypass VulnerabilityEPSS 0.3%CVE-2026-47039MEDIUMVulnerability in the Java VM component of Oracle Database Server. Supported versions that are affected are 19.3-19.31, 21.3-21.22 and 23.4EPSS 0.3%CVE-2025-14977HIGHDokan: AI Powered WooCommerce Multivendor Marketplace Solution – Build Your Own Amazon, eBay, Etsy <= 4.2.4 - Insecure Direct Object Reference to PayPal Account Takeover and Sensitive Information DisclosureEPSS 0.3%CVE-2026-60420HIGHVulnerability in the Oracle Unified Directory product of Oracle Fusion Middleware (component: OUD Core). Supported versions that are affectEPSS 0.3%CVE-2026-60739HIGHVulnerability in the Oracle Field Service product of Oracle E-Business Suite (component: Internal Operations). Supported versions that are EPSS 0.3%CVE-2026-60444HIGHVulnerability in the Oracle WebCenter Content product of Oracle Fusion Middleware (component: Content Server). Supported versions that are EPSS 0.3%CVE-2026-61299HIGHVulnerability in the Oracle Process Manufacturing Logistics product of Oracle E-Business Suite (component: Internal Operations). Supported EPSS 0.3%CVE-2026-83490HIGHVulnerability in the Oracle iRecruitment product of Oracle E-Business Suite (component: Internal Operations). Supported versions that are aEPSS 0.3%CVE-2026-61151HIGHVulnerability in the Oracle Commerce Guided Search / Oracle Commerce Experience Manager product of Oracle Commerce (component: Experience MaEPSS 0.3%