{"id":"CVE-2026-61824","aliases":["EUVD-2026-64132","GHSA-jg4p-g6xj-4qmf"],"status":"published","title":"Defuddle:  XSS via unescaped attribute interpolation in site extractors","description":"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.","severity":{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.0041,"percentile":0.35715,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-116","CWE-79"],"published":"2026-08-21T20:12:53Z","modified":"2026-10-28T02:31:06Z","fixes":[{"ecosystem":"npm","package":"defuddle","fixed_in":["0.19.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"defuddle","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"0.19.0"},{"fixed":"0.19.1"}]}]},{"source":"osv","ecosystem":"npm","package":"defuddle","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.19.1"}]}]}],"products":[{"vendor":"kepano","product":"defuddle"}],"references":[{"url":"https://github.com/kepano/defuddle/security/advisories/GHSA-jg4p-g6xj-4qmf","tags":["x_refsource_CONFIRM","advisory","web"]},{"url":"https://github.com/kepano/defuddle/pull/326","tags":["x_refsource_MISC","fix","web"]},{"url":"https://github.com/kepano/defuddle/commit/baf2eaef61d334ef595b28c89e5c5e89e52daf7f","tags":["x_refsource_MISC","fix","web"]},{"url":"https://github.com/kepano/defuddle/releases/tag/0.19.1","tags":["x_refsource_MISC","web"]},{"url":"https://github.com/advisories/GHSA-jg4p-g6xj-4qmf"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61824.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-61824","tags":["advisory"]},{"url":"https://github.com/kepano/defuddle","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-61824","title":"Defuddle:  XSS via unescaped attribute interpolation in site extractors","description":"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.","status":"published","published":"2026-08-21T20:12:53.225Z","modified":"2026-08-24T19:48:53.974Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-79","CWE-116"],"updated_at":"2026-11-02T14:19:53.4444Z"}],"euvd":[{"id":"EUVD-2026-64132","description":"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.","status":"published","published":"2026-08-21T20:12:53Z","modified":"2026-08-24T19:48:53Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N","level":"high"}],"updated_at":"2026-11-02T18:01:34.230875Z"}],"ghsa":[{"id":"GHSA-jg4p-g6xj-4qmf","title":"Defuddle vulnerable to XSS via unescaped attribute interpolation in site extractors","description":"## Summary\n\nAn Improper Neutralization of Input During Web Page Generation issue in the site extractor component allows an attacker-controlled attribute value to be injected into output HTML without escaping. An attacker who crafts a malicious HTML page or controls content on a matching domain can execute arbitrary scripts when a victim processes the page, resulting in Cross-Site Scripting (XSS).  This affects defuddle through 0.19.0 and has been patched in version 0.19.1.\n\n## Impact\n\nThis vulnerability allows for Cross-Site Scripting (XSS) execution without needing to compromise external websites. Affected consumers include:\n- Obsidian Web Clipper, \n- web services serving the parsed output directly as HTML, and \n- any downstream application rendering the unsanitized HTML results\n\n## Patch\nThis issue has been patched in defuddle version 0.19.1. Users are encouraged to update to the latest release.","status":"published","published":"2026-08-21T20:54:56Z","modified":"2026-08-21T20:54:57Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N","level":"high"}],"cwes":["CWE-79","CWE-116"],"updated_at":"2026-11-02T14:41:04.755504Z"}],"nvd":[{"id":"CVE-2026-61824","description":"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.","status":"published","published":"2026-08-21T21:17:01.017Z","modified":"2026-10-12T16:10:00.22Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-79","CWE-116"],"updated_at":"2026-11-02T14:12:40.665005Z"}],"osv":[{"id":"CVE-2026-61824","title":"Defuddle:  XSS via unescaped attribute interpolation in site extractors","description":"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.","status":"published","published":"2026-08-21T20:12:53.225Z","modified":"2026-10-28T02:31:06.088767405Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N","level":"high"}],"cwes":["CWE-116","CWE-79"],"updated_at":"2026-11-02T15:45:12.933503Z"},{"id":"GHSA-jg4p-g6xj-4qmf","title":"Defuddle vulnerable to XSS via unescaped attribute interpolation in site extractors","description":"## Summary\n\nAn Improper Neutralization of Input During Web Page Generation issue in the site extractor component allows an attacker-controlled attribute value to be injected into output HTML without escaping. An attacker who crafts a malicious HTML page or controls content on a matching domain can execute arbitrary scripts when a victim processes the page, resulting in Cross-Site Scripting (XSS).  This affects defuddle through 0.19.0 and has been patched in version 0.19.1.\n\n## Impact\n\nThis vulnerability allows for Cross-Site Scripting (XSS) execution without needing to compromise external websites. Affected consumers include:\n- Obsidian Web Clipper, \n- web services serving the parsed output directly as HTML, and \n- any downstream application rendering the unsanitized HTML results\n\n## Patch\nThis issue has been patched in defuddle version 0.19.1. Users are encouraged to update to the latest release.","status":"published","published":"2026-08-21T20:54:56Z","modified":"2026-08-21T21:10:59.866904Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N","level":"high"}],"cwes":["CWE-116","CWE-79"],"updated_at":"2026-11-02T15:46:50.336262Z"}]}}