Fallos del tipo CWE-346

698 resultados

Validação incorreta de origem (Origin Validation Error)

A aplicação falha em validar corretamente a origem (origem HTTP, domínio, referência) de requisições ou recursos, permitindo que um atacante simule estar vindo de uma origem confiável. Isso quebra mecanismos de segurança como CORS, CSRF e validações de referência, abrindo porta para ataques cross-site.

Ejemplo

Um banco implementa proteção CSRF verificando se o header `Origin` é igual a `banco.com.br`, mas não valida subdomínios. Um atacante consegue fazer requisições de `falso.banco.com.br` que passam na validação e transferem dinheiro da vítima.

Cómo mitigar

Valide a origem de forma rigorosa usando whitelist explícita (não apenas prefixos ou sufixos), implemente tokens CSRF anti-previsíveis, configure CORS corretamente evitando `Access-Control-Allow-Origin: *`, e use SameSite cookies quando possível.

CVE-2026-15768MEDIUMInsufficient policy enforcement in HTML-in-Canvas in Google Chrome prior to 150.0.7871.125 allowed a remote attacker to bypass same origin pEPSS 0.2%CVE-2026-50168HIGHAngular: URL Parser Differential in @angular/platform-server leading to SSRF Allowlist BypassEPSS 0.2%CVE-2026-14079MEDIUMInsufficient policy enforcement in Network in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to bypass same origin policy viEPSS 0.2%CVE-2023-28794MEDIUMPAC Files Exposed to Internet WebsitesEPSS 0.2%CVE-2026-14057MEDIUMInappropriate implementation in FedCM in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to bypass same origin policy via a cEPSS 0.2%CVE-2026-14046MEDIUMInappropriate implementation in CustomTabs in Google Chrome on Android prior to 150.0.7871.47 allowed a remote attacker to bypass same origiEPSS 0.2%CVE-2025-56648MEDIUMnpm parcel 2.0.0-alpha and before has an Origin Validation Error vulnerability. Malicious websites can send XMLHTTPRequests to the applicatiEPSS 0.2%CVE-2025-63386CRITICALA Cross-Origin Resource Sharing (CORS) misconfiguration vulnerability exists in Dify v1.9.1 in the /console/api/setup endpoint. The endpointEPSS 0.2%CVE-2025-23117MEDIUMAn Insufficient Firmware Update Validation vulnerability could allow an authenticated malicious actor with access to UniFi Protect Cameras aEPSS 0.2%CVE-2026-52843CRITICALLightpanda: fetch() and XMLHttpRequest attach session cookies to cross-origin requests regardless of credentials modeEPSS 0.2%CVE-2026-66313MEDIUMMicrosoft Edge (Chromium-based) Tampering VulnerabilityEPSS 0.2%CVE-2026-101027HIGHGitea migration SSRF through ALLOWED_DOMAINS address check bypassEPSS 0.2%CVE-2026-54007HIGHOpen WebUI: Cross-origin postMessage confirmation bypass via action:submitEPSS 0.2%CVE-2026-59950HIGHMCP Python SDK: WebSocket server transport does not support Host/Origin validationEPSS 0.2%CVE-2026-14105CRITICALInsufficient policy enforcement in Speech in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to bypass same origin policy viaEPSS 0.2%CVE-2026-15587CRITICALPrivilege Escalation in Google SecOps (Chronicle SOAR) via Crafted Authentication HeaderEPSS 0.2%CVE-2025-2346MEDIUMIROAD Dash Cam X5/Dash Cam X6 Domain origin validationEPSS 0.2%CVE-2025-9636HIGHCross-Origin Opener Policy Vulnerability in pgAdmin 4EPSS 0.2%CVE-2026-30964MEDIUMWebauthn Framework: allowed_origins collapses URL-like origins to host-only values, bypassing exact origin validationEPSS 0.2%CVE-2026-77119MEDIUMNSEC3 insecure-referral proof can use unrelated cached NSEC3 RRsetsEPSS 0.2%