CVE-2026-61824
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| kepano | defuddle | < 0.19.1 | affected |
Weaknesses
- CWE-79: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- CWE-116: CWE-116: Improper Encoding or Escaping of Output
References
- https://github.com/kepano/defuddle/security/advisories/GHSA-jg4p-g6xj-4qmf
- https://github.com/kepano/defuddle/pull/326
- https://github.com/kepano/defuddle/commit/baf2eaef61d334ef595b28c89e5c5e89e52daf7f
- https://github.com/kepano/defuddle/releases/tag/0.19.1
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