Weaknesses of type CWE-346

589 results

Validação incorreta de origem em requisições cross-origin

A aplicação falha em validar corretamente a origem (domínio) de requisições HTTP, especialmente em cenários de CORS (Cross-Origin Resource Sharing) ou WebSockets. Um atacante pode contornar controles de segurança e executar ações em nome do usuário legítimo, ou acessar dados sensíveis que deveriam estar protegidos.

Example

Um banco implementa CORS permitindo qualquer origem (`Access-Control-Allow-Origin: *`) ou valida o header `Origin` de forma fraca (aceitando subdomínios descontrolados). Um site malicioso faz requisições ao banco em background enquanto o usuário está logado, roubando dados ou transferindo dinheiro.

How to mitigate

Valide a origem contra uma lista branca explícita de domínios confiáveis; implemente SameSite cookies; use tokens CSRF + verificação de origin no servidor; evite `Access-Control-Allow-Origin: *` em APIs sensíveis; valide o header `Origin` exatamente, sem wildcards ou regex permissivo.

CVE-2021-26737MEDIUMPrivilege Escalation Using PID Reuse in ZCC macOSEPSS 0.1%CVE-2026-2457MEDIUMWebSocket Message Spoofing via Permalink Embed ManipulationEPSS 0.1%CVE-2026-9989MEDIUMInappropriate implementation in Media in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to bypass same origin policy via a EPSS 0.1%CVE-2026-74968MEDIUMSite isolation issue in the Graphics: WebRender componentEPSS 0.1%CVE-2023-25188MEDIUMAn issue was discovered on NOKIA Airscale ASIKA Single RAN devices before 21B. If/when CSP (as a BTS administrator) removes security hardeniEPSS 0.1%CVE-2026-72702CRITICALGrav CMS before 2.0.16 Origin Validation Bypass via RefererEPSS 0.1%CVE-2026-59297LOWSpring Cloud Function can incorrectly determine if URI is secureEPSS 0.1%CVE-2026-41886HIGHlocize Client SDK: Cross-origin DOM XSS & Handler Hijack Through Missing e.origin Validation in InContext EditorEPSS 0.1%CVE-2024-31127HIGHMacOS Zscaler Client Connector Local Privilege EscalationEPSS 0.1%CVE-2026-34720LOWZammad has an origin validation error in SSO mechanismEPSS 0.1%CVE-2026-94111MEDIUMTencent BrowserSkill through 0.3.0 Origin Validation Error in Local WebSocket DaemonEPSS 0.1%CVE-2025-8074MEDIUMOrigin validation error vulnerability in BeeDrive in Synology BeeDrive for desktop before 1.4.3-13973 allows local users to write arbitrary EPSS 0.1%CVE-2026-53656MEDIUMFiftyOne App server uses wildcard CORS (Access-Control-Allow-Origin: *), enabling cross-origin reads of local server dataEPSS 0.1%CVE-2025-67825MEDIUMAn issue was discovered in Nitro PDF Pro for Windows before 14.42.0.34. In certain cases, it displays signer information from a non-verifiedEPSS 0.1%CVE-2026-17984LOWInappropriate implementation in Browser in Google Chrome on Android prior to 151.0.7922.72 allowed a local attacker to leak cross-origin datEPSS 0.1%CVE-2025-1787MEDIUMLocal admin could to leak information from the Genetec Update Service configuration web page. An authenticated, admin privileged, Windows usEPSS 0.1%CVE-2024-5905LOWCortex XDR Agent: Local Windows User Can Disrupt Functionality of the AgentEPSS 0.1%CVE-2026-7439MEDIUMAgentFlow Local Web API Content-Type Validation BypassEPSS 0.1%CVE-2025-13593MEDIUMOrigin validation error vulnerability in Synology ActiveProtect Agent before 1.1.0-0439 allows local users to write arbitrary files with resEPSS 0.1%CVE-2025-66592MEDIUMAn origin validation error vulnerability in Synology Active Backup for Business Agent before 3.1.0-4967 allows local users to write arbitrarEPSS 0.1%