Falhas do tipo CWE-284

7.074 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-2019-10189MEDIUMA flaw was found in moodle before versions 3.7.1, 3.6.5, 3.5.7. Teachers in an assignment group could modify group overrides for other groupEPSS 0.9%CVE-2019-10188MEDIUMA flaw was found in moodle before versions 3.7.1, 3.6.5, 3.5.7. Teachers in a quiz group could modify group overrides for other groups in thEPSS 0.9%CVE-2024-28917MEDIUMAzure Arc-enabled Kubernetes Extension Cluster-Scope Elevation of Privilege VulnerabilityEPSS 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-2022-34270CRITICALAn issue was discovered in RWS WorldServer before 11.7.3. Regular users can create users with the Administrator role via UserWSUserManager.EPSS 0.9%CVE-2022-45475MEDIUMTiny File Manager version 2.4.8 allows an unauthenticated remote attacker to access the application's internal files. This is possible becauEPSS 0.9%CVE-2025-27646CRITICALVasion Print (formerly PrinterLogic) before Virtual Appliance Host 22.0.913 Application 20.0.2253 allows Edit User Account Exposure V-2024-0EPSS 0.9%CVE-2025-27649CRITICALVasion Print (formerly PrinterLogic) before Virtual Appliance Host 22.0.893 Application 20.0.2140 allows Incorrect Access Control: PHP V-202EPSS 0.9%CVE-2022-39070CRITICALThere is an access control vulnerability in some ZTE PON OLT products. Due to improper access control settings, remote attackers could use tEPSS 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%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-2024-43479HIGHMicrosoft Power Automate Desktop Remote Code Execution VulnerabilityEPSS 0.9%CVE-2025-21202MEDIUMWindows Recovery Environment Agent Elevation of Privilege VulnerabilityEPSS 0.9%CVE-2022-0270HIGHImproper header sanitization in bored-agent causes escalation of privilegeEPSS 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-2022-31687CRITICALVMware Workspace ONE Assist prior to 22.10 contains a Broken Access Control vulnerability. A malicious actor with network access to WorkspacEPSS 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-2022-35621MEDIUMAccess control vulnerability in Evoh NFT EvohClaimable contract with sha256 hash code fa2084d5abca91a62ed1d2f1cad3ec318e6a9a2d7f1510a00d8987EPSS 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-2026-58523MEDIUMMicrosoft Edge for Android Security Feature Bypass VulnerabilityEPSS 0.9%