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CVE-2026-61824

CVE-2026-61824 · Defuddle: XSS via unescaped attribute interpolation in site extractors

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Defuddle cleans up HTML pages. Prior to 0.19.1, site extractors interpolate page-derived image alt and src values, og:image values, and video descriptions into HTML strings without context-appropriate escaping, and buildExtractorResponse() returns this contentHtml without the main pipeline's DOM-based sanitization. The affected paths include src/extractors/x-article.ts, src/extractors/substack.ts, and src/extractors/youtube.ts. A malicious page or attacker-controlled content on a matching domain can inject event-handler attributes or javascript URLs that execute when a victim or downstream application renders the extracted HTML. This issue is fixed in version 0.19.1.

CVSS 8.2 · High · EPSS 0.4% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • defuddle

    Versions
    • < 0.19.1: Affected

    No fix published

  • defuddle npm

    Affected ranges
    • SEMVER: < 0.19.1

    Update to 0.19.1

Original sources

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