GHSA-qw8f-hph4-7r4gLowCVSS 4.7
HtmlSanitizer before 9.2.1039 and 10.0 prereleases before 10.0.1037-beta contains a cross-site...
🔗 CVE IDs covered (1)
📋 Description
HtmlSanitizer before 9.2.1039 and 10.0 prereleases before 10.0.1037-beta contains a cross-site scripting vulnerability because SanitizeDom(string) never sanitizes attributes on the html and body wrapper elements. Attackers can supply input with a second body or html tag carrying event handlers like onload, executing script when applications render serialized document or body outer HTML.
🔗 References (11)
- https://nvd.nist.gov/vuln/detail/CVE-2026-116538
- https://github.com/mganss/HtmlSanitizer/commit/96afbc818e64de7571ea17954a05d523e819c56f
- https://github.com/mganss/HtmlSanitizer/commit/ab626e7a4f2893f7e9ec0a72779ae19c5ec439a7
- https://github.com/mganss/HtmlSanitizer
- https://github.com/mganss/HtmlSanitizer/blob/v9.2.995/src/HtmlSanitizer/HtmlSanitizer.cs#L456-L465
- https://github.com/mganss/HtmlSanitizer/blob/v9.2.995/src/HtmlSanitizer/HtmlSanitizer.cs#L555-L583
- https://github.com/mganss/HtmlSanitizer/releases/tag/v10.0.1037-beta
- https://github.com/mganss/HtmlSanitizer/releases/tag/v9.2.1039
- https://joshua.hu/htmlsanitizer-sanitizedom-body-html-attribute-bypass
- https://www.vulncheck.com/advisories/htmlsanitizer-before-9.2.1039-xss-via-sanitizedom-body-and-html-attributes
- https://github.com/advisories/GHSA-qw8f-hph4-7r4g