Fallos del tipo CWE-284

7165 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-2026-17986MEDIUMInsufficient 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%