CVE-2026-0693 Cross-site scripting in Allow HTML in Category Descriptions
Administrators can inject arbitrary scripts into category descriptions, leading to stored XSS in multi-site or restricted HTML environments.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-0693?
CVE-2026-0693 is a medium-severity cross-site scripting vulnerability in arnoesterhuizen Allow HTML in Category Descriptions, published on 14 Feb 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-0693?
How do I fix CVE-2026-0693?
No fix has been published for CVE-2026-0693 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-0693 being exploited?
There is no known exploitation of CVE-2026-0693 in the wild and no public exploit code.
Sources
Also known as GHSA-f4qw-9xx8-rwgr.