CVE-2023-23627

Sanitize is an allowlist-based HTML and CSS sanitizer. Versions 5.0.0 and
later, prior to 6.0.1, are vulnerable to Cross-site Scripting. When
Sanitize is configured with a custom allowlist that allows noscript
elements, attackers are able to include arbitrary HTML, resulting in XSS
(cross-site scripting) or other undesired behavior when that HTML is
rendered in a browser. The default configurations do not allow noscript
elements and are not vulnerable. This issue only affects users who are
using a custom config that adds noscript to the element allowlist. This
issue has been patched in version 6.0.1. Users who are unable to upgrade
can prevent this issue by using one of Sanitize’s default configs or by
ensuring that their custom config does not include noscript in the
element allowlist.

Bugs

• <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1030047&gt;