Falhas do tipo CWE-284

7.095 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-2026-51641HIGHIncorrect access control in the getWiFiMeshConfig function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain mEPSS 0.5%CVE-2026-51642HIGHIncorrect access control in the getMeshRoutingTable function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtainEPSS 0.5%CVE-2026-51650HIGHIncorrect access control in the getRemoteCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain remoteEPSS 0.5%CVE-2026-51644HIGHIncorrect access control in the getCrpcConfig function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain cloudEPSS 0.5%CVE-2026-51658HIGHIncorrect access control in the getDmzCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain DMZ confiEPSS 0.5%CVE-2026-51623HIGHIncorrect access control in the getDdnsStatus function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain DDNS EPSS 0.5%CVE-2026-56157MEDIUMMicrosoft SharePoint Server Spoofing VulnerabilityEPSS 0.5%CVE-2026-31018HIGHIn Dolibarr ERP & CRM <= 22.0.4, PHP code detection and editing permission enforcement in the Website module is not applied consistently to EPSS 0.5%CVE-2024-25121HIGHImproper Access Control Persisting File Abstraction Layer Entities via Data Handler in TYPO3EPSS 0.5%CVE-2026-54533MEDIUMvantage6 node has an Improper Access Control issueEPSS 0.5%CVE-2026-73212MEDIUMcoturn peer-IP ACL canonicalization & scope bypass on the RFC 6062 TCP CONNECT relay path → internal-network SSRF and proven internal root RCEEPSS 0.5%CVE-2021-46903MEDIUMAn issue was discovered in LTOS-Web-Interface in Meinberg LANTIME-Firmware before 6.24.029 MBGID-9343 and 7 before 7.04.008 MBGID-6303. An aEPSS 0.5%CVE-2026-13553MEDIUMitsourcecode Online Hotel Management System controller.php add unrestricted uploadEPSS 0.5%CVE-2026-7733MEDIUMfunadmin Frontend Chunked Upload Endpoint UploadService.php chunkUpload unrestricted uploadEPSS 0.5%CVE-2026-78245MEDIUMitsourcecode Online Pharmacy System User Registration register.php move_uploaded_file unrestricted uploadEPSS 0.5%CVE-2026-28306CRITICALSolarWinds Serv-U Privilege Escalation VulnerabilityEPSS 0.5%CVE-2026-26247CRITICALGitea OAuth2 PKCE S256 challenges are not enforced during token exchangeEPSS 0.5%CVE-2026-2979MEDIUMFastApiAdmin Scheduled Task API controller.py user_avatar_upload_controller unrestricted uploadEPSS 0.5%CVE-2026-82607MEDIUMCozmoslabs Profile Builder Plugin Avatar Simple Upload AJAX admin-ajax.php wppb_ajax_simple_avatar unrestricted uploadEPSS 0.5%CVE-2023-46664HIGHImproper Access Control in Sielco PolyEco1000EPSS 0.5%