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-2022-32257CRITICALA vulnerability has been identified in SINEMA Remote Connect Server (All versions < V3.2). The affected application consists of a web servicEPSS 0.8%CVE-2024-11661MEDIUMCodezips Free Exam Hall Seating Management System Profile Image profile.php unrestricted uploadEPSS 0.8%CVE-2026-28304CRITICALSolarWinds Serv-U Remote Code Execution VulnerabilityEPSS 0.8%CVE-2021-42116MEDIUMUnauthorized Menu Item Access in TopEaseEPSS 0.8%CVE-2025-21185MEDIUMMicrosoft Edge (Chromium-based) Elevation of Privilege VulnerabilityEPSS 0.8%CVE-2019-13919—A vulnerability has been identified in SINEMA Remote Connect Server (All versions < V2.0 SP1). Some pages that should only be accessible by EPSS 0.8%CVE-2021-1410MEDIUMCisco Webex Meetings Unauthorized Distribution List Update VulnerabilityEPSS 0.8%CVE-2026-90881MEDIUMD-Link DIR-882 CGI Binary dllog.cgi main information disclosureEPSS 0.8%CVE-2026-56654CRITICALPrivilege Escalation via Access Token Scope Escalation in APIEPSS 0.8%CVE-2021-25991MEDIUMifme - Improper Access Control leads to admin deactivationEPSS 0.8%CVE-2024-12233MEDIUMcode-projects Online Notice Board Profile Picture registration.php unrestricted uploadEPSS 0.8%CVE-2025-2996MEDIUMTenda FH1202 Web Management Interface SysToolDDNS access controlEPSS 0.8%CVE-2022-2088MEDIUMElcomplus SmartICS Access ControlEPSS 0.8%CVE-2023-21980HIGHVulnerability in the MySQL Server product of Oracle MySQL (component: Client programs). Supported versions that are affected are 5.7.41 andEPSS 0.8%CVE-2023-28808CRITICALSome Hikvision Hybrid SAN/Cluster Storage products have an access control vulnerability which can be used to obtain the admin permission. ThEPSS 0.8%CVE-2023-39743—lrzip-next LZMA v23.01 was discovered to contain an access violation via the component /bz3_decode_block src/libbz3.c.EPSS 0.8%CVE-2026-118140MEDIUMServer for NFS Information Disclosure VulnerabilityEPSS 0.8%CVE-2016-9599HIGHpuppet-tripleo before versions 5.5.0, 6.2.0 is vulnerable to an access-control flaw in the IPtables rules management, which allowed the creaEPSS 0.8%CVE-2024-13105MEDIUMD-Link DIR-816 A2 DHCPD Setting form2Dhcpd.cgi access controlEPSS 0.8%CVE-2024-13102MEDIUMD-Link DIR-816 A2 DDNS Service access controlEPSS 0.8%