Weaknesses of type CWE-116

371 results

Codificação ou escape inadequado de saída

A aplicação falha em codificar ou fazer escape apropriado dos dados antes de enviá-los ao usuário, permitindo que caracteres especiais sejam interpretados como código (HTML, JavaScript, SQL, etc.). Isso abre brecha para injeção de payload malicioso, especialmente XSS em contextos web.

Example

Um formulário de busca que exibe o termo pesquisado sem escape: se o usuário digita '<img src=x onerror=alert(1)>', a página renderiza o JavaScript em vez de mostrar o texto como string inócua.

How to mitigate

Aplique escape contextual (HTML entity encoding para HTML, JavaScript encoding para scripts, URL encoding para parâmetros) usando bibliotecas consolidadas da sua stack (DOMPurify, OWASP ESAPI, etc.). Validar entrada é primeira linha de defesa, mas escape de saída é crítico e obrigatório.

CVE-2025-5271MEDIUMDevtools' preview ignored CSP headersEPSS 0.3%CVE-2026-28907HIGHThe issue was addressed with improved input validation. This issue is fixed in Safari 26.5, iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOEPSS 0.3%CVE-2026-24127MEDIUMTypemill has Reflected XSS via login error view templateEPSS 0.3%CVE-2026-32811HIGHHeimdall: Path received via Envoy gRPC corrupted when containing query stringEPSS 0.3%CVE-2026-55618MEDIUMeml_parser: URL extraction bypass via HTML entities in URLsEPSS 0.3%CVE-2026-54013HIGHOpen WebUI: Stored XSS to Account Takeover via Model Profile Images in Open WebUIEPSS 0.3%CVE-2026-50642MEDIUMTerminal Escape Injection in diff‑so‑fancyEPSS 0.3%CVE-2026-35208MEDIUMlichess.org has an Unsanitized Stream Title Injection on /streamerEPSS 0.3%CVE-2026-35569HIGHApostropheCMS: Stored XSS in SEO Fields Leads to Authenticated API Data Exposure in ApostropheCMSEPSS 0.3%CVE-2023-45359MEDIUMAn issue was discovered in the Vector Skin component for MediaWiki before 1.39.5 and 1.40.x before 1.40.1. vector-toc-toggle-button-label isEPSS 0.3%CVE-2026-55859MEDIUMMariaDB Connector/R2DBC: Inappropriate Encoding for Output Context and Improper Encoding or Escaping of Output in org.mariadb:r2dbc-mariadbEPSS 0.3%CVE-2024-9427MEDIUMKoji: escape html tag characters in the query stringEPSS 0.3%CVE-2024-4099LOWImproper Encoding or Escaping of Output in GitLabEPSS 0.3%CVE-2026-46628MEDIUMTwig: The `spaceless` filter implicitly marks its output as safeEPSS 0.3%CVE-2025-12697LOWImproper Encoding or Escaping of Output in GitLabEPSS 0.3%CVE-2023-37875LOWCross-Site Scripting Vulnerability in Wing FTP Server <= 7.2.0EPSS 0.3%CVE-2026-33941HIGHHandlebars.js has JavaScript Injection in CLI Precompiler via Unescaped Names and OptionsEPSS 0.3%CVE-2026-1011MEDIUMStored Cross-Site Scripting in Altium Live Support Center Comment EndpointEPSS 0.3%CVE-2026-33758CRITICALOpenBao has Reflected XSS in its OIDC authentication error messageEPSS 0.3%CVE-2026-27013HIGHFabric.js Affected by Stored XSS via SVG ExportEPSS 0.3%