Description
The Allow HTML in Category Descriptions plugin for WordPress is vulnerable to Stored Cross-Site Scripting via category descriptions in all versions up to, and including, 1.2.4. This is due to the plugin unconditionally removing the `wp_kses_data` output filter for term_description, link_description, link_notes, and user_description fields without checking user capabilities. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in category descriptions that will execute whenever a user accesses a page where the category description is displayed. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
arnoesterhuizen Allow HTML in Category Descriptions
Default version status: unaffected
0 to ≤ 1.2.4affected
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/b63c9a5a-fa3e-46c7-9d9c-7c209fc5713a?source=cve ↗
- https://plugins.trac.wordpress.org/browser/allow-html-in-category-descriptions/trunk/html-in-category-descriptions.php#L23 ↗
- https://plugins.trac.wordpress.org/browser/allow-html-in-category-descriptions/tags/1.2.4/html-in-category-descriptions.php#L23 ↗