Weaknesses of type CWE-79

28,460 results

Injeção de conteúdo não sanitizado (XSS)

Ocorre quando dados não confiáveis (entrada de usuário, parâmetros, APIs externas) são inseridos diretamente no HTML, JavaScript ou contexto de renderização sem validação ou escape. Um atacante injeta código malicioso que executa no navegador da vítima, roubando cookies, sessões ou realizando ações em seu nome.

Example

Uma página de busca que exibe o termo procurado sem escape: se o usuário buscar por '<script>alert("hackeado")</script>', esse código é executado no navegador de quem visualizar o resultado. Um atacante pode injetar um script que rouba o token de autenticação.

How to mitigate

Escape ou encode toda entrada antes de renderizá-la (use funções nativas como textContent em JS, template engines com auto-escape como Jinja2 ou escapeHtml). Implemente Content Security Policy (CSP) para restringir execução de scripts inline. Valide e sanitize entrada no servidor, nunca confie apenas em validação client-side.

CVE-2026-20959MEDIUMMicrosoft SharePoint Server Spoofing VulnerabilityEPSS 7.6%CVE-2022-0864—UpdraftPlus < 1.22.9 - Reflected Cross-Site ScriptingEPSS 7.4%CVE-2022-25869MEDIUMAll versions of the package angular; all versions of the package angularjs.core; all versions of the package angularjs are vulnerable to CroEPSS 7.3%CVE-2023-33829MEDIUMA stored cross-site scripting (XSS) vulnerability in Cloudogu GmbH SCM Manager v1.2 to v1.60 allows attackers to execute arbitrary web scripEPSS 7.3%CVE-2022-2941MEDIUMWP-UserOnline <= 2.88.0 - Authenticated (Admin+) Stored Cross-Site ScriptingEPSS 7.3%CVE-2020-4038HIGHReflected XSS in GraphQL PlaygroundEPSS 7.2%CVE-2025-29471HIGHCross Site Scripting vulnerability in Nagios Log Server v.2024R1.3.1 allows a remote attacker to execute arbitrary code via a payload into tEPSS 7.2%CVE-2021-26247—As an unauthenticated remote user, visit "http://<CACTI_SERVER>/auth_changepassword.php?ref=<script>alert(1)</script>" to successfully execuEPSS 7.1%CVE-2021-1879MEDIUMThis issue was addressed by improved management of object lifetimes. This issue is fixed in iOS 12.5.2, iOS 14.4.2 and iPadOS 14.4.2, watchOEPSS 7.1%KEVCVE-2020-8115—A reflected XSS vulnerability has been discovered in the publicly accessible afr.php delivery script of Revive Adserver <= 5.0.3 by Jacopo TEPSS 7.1%CVE-2026-71386HIGHColdFusion | Cross-site Scripting (XSS) (CWE-79)EPSS 6.9%CVE-2019-3926—Crestron AM-100 with firmware 1.6.0.2 and AM-101 with firmware 2.7.0.2 are vulnerable to command injection via SNMP OID iso.3.6.1.4.1.3212.1EPSS 6.9%CVE-2019-3925—Crestron AM-100 with firmware 1.6.0.2 and AM-101 with firmware 2.7.0.2 are vulnerable to command injection via SNMP OID iso.3.6.1.4.1.3212.1EPSS 6.9%CVE-2021-25079—Contact Form Entries < 1.2.4 - Reflected Cross-Site ScriptingEPSS 6.8%CVE-2022-34305—XSS in examples web applicationEPSS 6.7%CVE-2012-0767MEDIUMCross-site scripting (XSS) vulnerability in Adobe Flash Player before 10.3.183.15 and 11.x before 11.1.102.62 on Windows, Mac OS X, Linux, aEPSS 6.7%KEVCVE-2025-52436HIGHAn Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability [CWE-79] vulnerability in Fortinet ForEPSS 6.5%CVE-2022-2383—Feed Them Social < 3.0.1 - Reflected Cross-Site ScriptingEPSS 6.5%CVE-2021-24316—Mediumish <= 1.0.47 - Unauthenticated Reflected Cross-Site Scripting (XSS)EPSS 6.4%CVE-2012-1872MEDIUMCross-site scripting (XSS) vulnerability in Microsoft Internet Explorer 6 through 9 allows remote attackers to inject arbitrary web script oEPSS 6.4%