[GHSA-rpr9-rxv7-x643] Apostrophe has default XSS via xmp raw-text passthrough in sanitize-html

[AND-TomHarris]

Updates

• Affected products

Comments
As noted here: apostrophecms/apostrophe#5418

The vulnerability was introduced in version 2.17.3 (not prior versions). 2.17.4 has been published to revert the changes: https://www.npmjs.com/package/sanitize-html?activeTab=versions

[github]

Hi there @boutell! A community member has suggested an improvement to your security advisory. If approved, this change will affect the global advisory listed at github.com/advisories. It will not affect the version listed in your project repository.

This change will be reviewed by our Security Curation Team. If you have thoughts or feedback, please share them in a comment here! If this PR has already been closed, you can start a new community contribution for this advisory

[Dipanshusinghh]

This change looks much more accurate based on the reproduction/testing shared in the related discussion.

Updating the affected range from <=2.17.3 to specifically 2.17.3 should help avoid confusion for users trying to verify whether older versions are actually vulnerable or not.

Also nice to see the fixed version explicitly marked as 2.17.4 here.