Falhas do tipo CWE-79

28.384 resultados

Injeção de Script entre Sites (XSS)

Ocorre quando a aplicação insere dados não validados do usuário diretamente em páginas HTML enviadas ao navegador, permitindo que atacantes injetem código JavaScript malicioso. O navegador executa esse script com os mesmos privilégios da sessão legítima, comprometendo dados da vítima ou sua conta.

Exemplo

Um formulário de busca que exibe o termo digitado na página sem sanitização: se você buscar por '<script>alert(1)</script>', esse script será executado no navegador de quem abrir o resultado. Um atacante pode roubar cookies de sessão ou redirecionar para um site falso.

Como mitigar

Valide e escape todos os dados do usuário antes de renderizar em HTML (use funções nativas como textContent em vez de innerHTML). Para entrada de dados, liste o que é permitido (whitelist); para saída, contextualize o escape (HTML, JavaScript, URL). Use Content Security Policy (CSP) como camada adicional para restringir execução de scripts inline.

CVE-2026-20945MEDIUMMicrosoft SharePoint Server Spoofing VulnerabilityEPSS 19.1%CVE-2024-28739CRITICALAn issue in Koha ILS 23.05 and before allows a remote attacker to execute arbitrary code via a crafted script to the format parameter.EPSS 18.9%CVE-2024-1676CRITICALInappropriate implementation in Navigation in Google Chrome prior to 122.0.6261.57 allowed a remote attacker to spoof security UI via a crafEPSS 18.8%CVE-2014-2120MEDIUMCross-site scripting (XSS) vulnerability in the WebVPN login page in Cisco Adaptive Security Appliance (ASA) Software allows remote attackerEPSS 18.8%KEVCVE-2024-50339CRITICALGLPI vulnerable to unauthenticated session hijackingEPSS 18.7%CVE-2021-22875—Revive Adserver before 5.1.1 is vulnerable to a reflected XSS vulnerability in stats.php via the `setPerPage` parameter.EPSS 18.2%CVE-2021-22874—Revive Adserver before 5.1.1 is vulnerable to a reflected XSS vulnerability in userlog-index.php via the `period_preset` parameter.EPSS 18.2%CVE-2021-24275—Popup by Supsystic < 1.10.5 - Reflected Cross-Site scripting (XSS)EPSS 18.2%CVE-2018-19943HIGHIf exploited, this cross-site scripting vulnerability could allow remote attackers to inject malicious code. QNAP has already fixed these isEPSS 17.7%KEVCVE-2024-11182MEDIUMStored XSS vulnerability in MDaemon Email ServerEPSS 17.7%KEVCVE-2021-24274—Ultimate Maps by Supsystic < 1.2.5 - Reflected Cross-Site scripting (XSS)EPSS 17.6%CVE-2022-27926MEDIUMA reflected cross-site scripting (XSS) vulnerability in the /public/launchNewWindow.jsp component of Zimbra Collaboration (aka ZCS) 9.0 alloEPSS 17.6%KEVCVE-2025-31121HIGHOpenEMR allows XSS in Patient Image featureEPSS 17.3%CVE-2025-8155MEDIUMD-Link DCS-6010L Management Application vb.htm cross site scriptingEPSS 17.3%CVE-2023-4372MEDIUMLiteSpeed Cache <= 5.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via ShortcodeEPSS 16.8%CVE-2024-6931HIGHThe Events Calendar <= 6.6.3 - Unauthenticated Stored Cross-Site ScriptingEPSS 16.7%CVE-2008-2991MEDIUMCross-site scripting (XSS) vulnerability in Adobe RoboHelp Server 6 and 7 allows remote attackers to inject arbitrary web script or HTML viaEPSS 16.5%CVE-2022-4971MEDIUMSassy Social Share <= 3.3.3 - Reflected Cross-Site ScriptingEPSS 16.2%CVE-2025-2703MEDIUMThe built-in XY Chart plugin is vulnerable to a DOM XSS vulnerability. A user with Editor permissions is able to modify such a panel in orEPSS 16.2%CVE-2021-24276—Contact Form by Supsystic < 1.7.15 - Reflected Cross-Site scripting (XSS)EPSS 16.0%