Fallos del tipo CWE-284

7967 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-2025-7076MEDIUMBlackVue Dashcam 590X Configuration upload.cgi access controlEPSS 0.9%CVE-2022-4724HIGHImproper Access Control in ikus060/rdiffwebEPSS 0.9%CVE-2023-43696HIGH Improper Access Control in SICK APU allows an unprivileged remote attacker to download as well as upload arbitrary files via anonymous acceEPSS 0.9%CVE-2021-28505HIGHOn affected Arista EOS platforms, if a VXLAN match rule exists in an IPv4 access-list that is applied to the ingress of an L2 or an L3 port/SVI, the VXLAN rule and subsequent ACL rules in that access list will ignore the specified IP protocol.EPSS 0.9%CVE-2022-0270HIGHImproper header sanitization in bored-agent causes escalation of privilegeEPSS 0.9%CVE-2026-12265HIGHAuthenticated Broken Access ControlEPSS 0.9%CVE-2024-43479HIGHMicrosoft Power Automate Desktop Remote Code Execution VulnerabilityEPSS 0.9%CVE-2018-15645HIGHImproper access control in message routing in Odoo Community 12.0 and earlier and Odoo Enterprise 12.0 and earlier allows remote authenticatEPSS 0.9%CVE-2023-40850—netentsec NS-ASG 6.3 is vulnerable to Incorrect Access Control. There is a file leak in the website source code of the application security EPSS 0.9%CVE-2022-31475MEDIUMWordPress GiveWP plugin <= 2.20.2 - Authenticated Arbitrary File Read via Export function vulnerabilityEPSS 0.9%CVE-2017-12191—A flaw was found in the CloudForms account configuration when using VMware. By default, a shared account is used that has privileged access EPSS 0.9%CVE-2022-35621MEDIUMAccess control vulnerability in Evoh NFT EvohClaimable contract with sha256 hash code fa2084d5abca91a62ed1d2f1cad3ec318e6a9a2d7f1510a00d8987EPSS 0.9%CVE-2022-4700MEDIUMRoyal Elementor Addons <= 1.3.59 - Insufficient Access Control to Theme ActivationEPSS 0.9%CVE-2026-58523MEDIUMMicrosoft Edge for Android Security Feature Bypass VulnerabilityEPSS 0.9%CVE-2021-23203HIGHImproper access control in reporting engine of Odoo Community 14.0 through 15.0, and Odoo Enterprise 14.0 through 15.0, allows remote attackEPSS 0.9%CVE-2024-31759HIGHAn issue in sanluan PublicCMS v.4.0.202302.e allows an attacker to escalate privileges via the change password function.EPSS 0.9%CVE-2018-3762—Nextcloud Server before 12.0.8 and 13.0.3 suffers from improper checks of dropped permissions for incoming shares allowing a user to still rEPSS 0.9%CVE-2019-0041MEDIUMJunos OS: EX4300-MP Series: IP transit traffic can reach the control plane via loopback interface.EPSS 0.9%CVE-2024-11961MEDIUMGuangzhou Huayi Intelligent Technology Jeewms WmOmNoticeHController.java preHandle information disclosureEPSS 0.9%CVE-2026-21636MEDIUMA flaw in Node.js's permission model allows Unix Domain Socket (UDS) connections to bypass network restrictions when `--permission` is enablEPSS 0.9%