Falhas do tipo CWE-284

7.165 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-2026-17986MEDIUMInsufficient policy enforcement in Bluetooth in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who had compromised the rendeEPSS 0.3%CVE-2026-17873MEDIUMInsufficient policy enforcement in Chrome for iOS in Google Chrome on iOS prior to 151.0.7922.72 allowed a remote attacker to bypass discretEPSS 0.3%CVE-2025-30438MEDIUMThis issue was addressed with improved access restrictions. This issue is fixed in iOS 18.4 and iPadOS 18.4, macOS Sequoia 15.4, macOS SonomEPSS 0.3%CVE-2025-20137MEDIUMA vulnerability in the access control list (ACL) programming of Cisco IOS Software that is running on Cisco Catalyst 1000 Switches and CiscoEPSS 0.3%CVE-2026-73371MEDIUMJoomla! Core - [20260808] - Improper ACL checks for batch copy actions in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2EPSS 0.3%CVE-2020-3524MEDIUMCisco IOS XE ROM Monitor Software VulnerabilityEPSS 0.3%CVE-2026-73372MEDIUMJoomla! Core - [20260809] - Improper ACL checks when injection schema.org contact data in Joomla 5.1.0-5.4.7 and 6.0.0-6.1.2EPSS 0.3%CVE-2025-32790MEDIUMDify Allows Insecure User Role Access Control for APP DSL ExportingEPSS 0.3%CVE-2026-86774MEDIUMSnipe-IT before 8.7.0 Broken Access Control via AssetModelPolicyEPSS 0.3%CVE-2024-44913MEDIUMAn issue in the component EXR!ReadEXR+0x40ef1 of Irfanview v4.67.1.0 allows attackers to cause an access violation via a crafted EXR file. TEPSS 0.3%CVE-2025-20223MEDIUMA vulnerability in Cisco Catalyst Center, formerly Cisco DNA Center, could allow an authenticated, remote attacker to read and modify data iEPSS 0.3%CVE-2026-14052MEDIUMInsufficient policy enforcement in FileSystem in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to bypass discretionary acceEPSS 0.3%CVE-2026-21694MEDIUMTitra APIs have Improper Access ControlEPSS 0.3%CVE-2025-63363HIGHA lack of Management Frame Protection in Waveshare RS232/485 TO WIFI ETH (B) Serial to Ethernet/Wi-Fi Gateway Firmware V3.1.1.0: HW 4.3.2.1:EPSS 0.3%CVE-2022-42811MEDIUMAn access issue was addressed with additional sandbox restrictions. This issue is fixed in tvOS 16.1, iOS 16.1 and iPadOS 16, macOS Ventura EPSS 0.3%CVE-2026-12529MEDIUMSourceCodester CET Automated Grading System with AI Predictive Analytics Student Self-Registration Endpoint index.php access controlEPSS 0.3%CVE-2024-42022HIGHAn incorrect permission assignment vulnerability allows an attacker to modify product configuration files.EPSS 0.3%CVE-2026-13828MEDIUMInappropriate implementation in Enterprise in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to obtain potentially sensitiveEPSS 0.3%CVE-2025-44657LOWIn Linksys EA6350 V2.1.2, the chroot_local_user option is enabled in the dynamically generated vsftpd configuration file. This could lead toEPSS 0.3%CVE-2025-65797MEDIUMIncorrect access control in the Identity Provider service of usememos memos v0.25.2 allows attackers with low-level privileges to arbitrarilEPSS 0.3%