Weaknesses of type CWE-79

29,102 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-2024-4686MEDIUMCampcodes Complete Web-Based School Management System emarks_range_grade_update_form.php cross site scriptingEPSS 0.5%CVE-2024-0720LOWFactoMineR FactoInvestigate HTML Report Generator cross site scriptingEPSS 0.5%CVE-2021-4296LOWw3c Unicorn ValidatorNuMessage.java ValidatorNuMessage cross site scriptingEPSS 0.5%CVE-2024-4687MEDIUMCampcodes Complete Web-Based School Management System create_events.php cross site scriptingEPSS 0.5%CVE-2024-2735MEDIUMBold Page Builder <= 4.8.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via "Price List" ElementEPSS 0.5%CVE-2021-36398MEDIUMIn moodle, ID numbers displayed in the web service token list required additional sanitizing to prevent a stored XSS risk.EPSS 0.5%CVE-2024-2734MEDIUMBold Page Builder <= 4.8.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via AI FeaturesEPSS 0.5%CVE-2023-5200MEDIUMflowpaper <= 2.0.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via ShortcodeEPSS 0.5%CVE-2017-20209MEDIUMNagios Fusion < 4.0.1 XSS via Users/Servers PageEPSS 0.5%CVE-2026-45392HIGHDOM-based XSS in Cribl StreamEPSS 0.5%CVE-2018-25119MEDIUMNagios Fusion < 4.1.5 XSS via fusionwindow ParameterEPSS 0.5%CVE-2025-56515HIGHFile upload vulnerability in Fiora chat application 1.0.0 through user avatar upload functionality. The application fails to validate SVG fiEPSS 0.5%CVE-2023-37901MEDIUMCross-Site-Scripting via confirmation promptsEPSS 0.5%CVE-2024-21504MEDIUMVersions of the package livewire/livewire from 3.3.5 and before 3.4.9 are vulnerable to Cross-site Scripting (XSS) when a page uses [Url] foEPSS 0.5%CVE-2021-36399MEDIUMIn Moodle, ID numbers displayed in the quiz override screens required additional sanitizing to prevent a stored XSS risk.EPSS 0.5%CVE-2024-2736MEDIUMBold Page Builder <= 4.8.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via HTML TagsEPSS 0.5%CVE-2022-46957MEDIUMSourcecodester.com Online Graduate Tracer System V 1.0.0 is vulnerable to Cross Site Scripting (XSS).EPSS 0.5%CVE-2024-57601MEDIUMCross Site Scripting vulnerability in Alex Tselegidis EasyAppointments v.1.5.0 allows a remote attacker to execute arbitrary code via the leEPSS 0.5%CVE-2023-5287LOWBEECMS cross site scriptingEPSS 0.5%CVE-2024-4688MEDIUMCampcodes Complete Web-Based School Management System conversation_history_admin.php cross site scriptingEPSS 0.5%