Fallos del tipo CWE-284

7106 resultados

Controle de acesso insuficiente ou ausente

A aplicação não valida corretamente quem pode acessar determinado recurso (arquivo, API, função, dados), permitindo que usuários não autorizados façam operações que deveriam estar bloqueadas. É um dos problemas mais comuns em segurança: sem autenticação e autorização robustas, qualquer um consegue fazer o que não deveria.

Ejemplo

Um admin panel acessível via /admin sem login real, ou uma API que retorna dados de qualquer usuário basta mudar um ID na URL sem verificar se você tem permissão. Outro caso: arquivo de configuração com credenciais exposto publicamente porque a aplicação não define permissões de leitura no servidor.

Cómo mitigar

Implemente autenticação forte (sessões, tokens JWT) e autorização em toda operação sensível — verifique explicitamente se o usuário logado tem permissão antes de retornar dados ou executar ações. Use listas de controle de acesso (ACL) ou Role-Based Access Control (RBAC), e nunca confie em IDs de usuário vindos do cliente sem validação server-side.

CVE-2026-50886CRITICALIncorrect access control in the webhook management component of Project Firefly III v6.5.9 allows attackers to scan internal resources via aEPSS 0.4%CVE-2026-84165HIGHLack of authorisation in OpenNebula by OpenNebula SystemsEPSS 0.4%CVE-2020-37116HIGHGUnet OpenEclass 1.7.3 E-learning platform - phpMyAdmin Remote AccessEPSS 0.4%CVE-2024-57433HIGHmacrozheng mall-tiny 1.0.1 is vulnerable to Incorrect Access Control via the logout function. After a user logs out, their token is still avEPSS 0.4%CVE-2026-20736HIGHGitea Web Attachment Deletion: Cross-Repository Unauthorized Deletion via Missing Repo Ownership CheckEPSS 0.4%CVE-2026-33316HIGHVikunja’s Improper Access Control Enables Bypass of Administrator-Imposed Account DisablementEPSS 0.4%CVE-2025-20366MEDIUMImproper Access Control in Background Job Submission in Splunk EnterpriseEPSS 0.4%CVE-2023-20230MEDIUMA vulnerability in the restricted security domain implementation of Cisco Application Policy Infrastructure Controller (APIC) could allow anEPSS 0.4%CVE-2022-23995MEDIUMUnprotected component vulnerability in StBedtimeModeAlarmReceiver in Wear OS 3.0 prior to Firmware update Feb-2022 Release allows untrusted EPSS 0.4%CVE-2022-23997MEDIUMUnprotected component vulnerability in StTheaterModeDurationAlarmReceiver in Wear OS 3.0 prior to Firmware update Feb-2022 Release allows unEPSS 0.4%CVE-2022-30564MEDIUMSome Dahua embedded products have a vulnerability of unauthorized modification of the device timestamp. By sending a specially crafted packeEPSS 0.4%CVE-2023-7193MEDIUMMTab Bookmark Installation install.php access controlEPSS 0.4%CVE-2024-21195HIGHVulnerability in the Oracle BI Publisher product of Oracle Analytics (component: Layout Templates). Supported versions that are affected arEPSS 0.4%CVE-2022-23996MEDIUMUnprotected component vulnerability in StTheaterModeReceiver in Wear OS 3.0 prior to Firmware update Feb-2022 Release allows untrusted appliEPSS 0.4%CVE-2022-2259MEDIUMIn affected versions of Octopus Deploy it is possible for a user to view Workerpools without being explicitly assigned permissions to view tEPSS 0.4%CVE-2025-56015HIGHIn GenieACS 1.2.13, an unauthenticated access vulnerability exists in the NBI API endpoint.EPSS 0.4%CVE-2026-27471CRITICALERP: Document access through endpoints due to missing validationEPSS 0.4%CVE-2025-25381HIGHIncorrect access control in the KSRTC AWATAR app of Karnataka State Road Transport Corporation v1.3.0 allows to view sensitive information sEPSS 0.4%CVE-2025-24198MEDIUMThis issue was addressed by restricting options offered on a locked device. This issue is fixed in iOS 18.4 and iPadOS 18.4, iPadOS 17.7.6, EPSS 0.4%CVE-2024-21084MEDIUMVulnerability in the Oracle BI Publisher product of Oracle Analytics (component: Service Gateway). Supported versions that are affected areEPSS 0.4%