Description (CNA)
Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. From 2.25.0 until 2.25.2, Loofah::HTML5::Scrub.allowed_uri? does not reject javascript: URIs whose scheme is split or prefixed with the HTML5 named whitespace character references 	 or 
. CGI.unescapeHTML leaves those references intact, so allowed_uri? reports the URL safe even though a browser decodes and strips the tab or line feed and executes the resulting javascript: URL. This issue affects only callers that pass HTML-encoded strings directly to allowed_uri?; Loofah's default sanitize() path is not affected. This issue is fixed in version 2.25.2.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| flavorjones / loofah | affected >= 2.25.0, < 2.25.2 |
CWE
CWE-184
References
- https://github.com/flavorjones/loofah/security/advisories/GHSA-8whx-365g-h9vv
- https://github.com/flavorjones/loofah/pull/308
- https://github.com/flavorjones/loofah/commit/5e91af861e3cdab47b91dd0b81f3afdfd13a5e19
- https://github.com/flavorjones/loofah/releases/tag/v2.25.2
ADP enrichment
No English description supplied.
No references supplied.