CVE-2025-13533
Description
The CSS & JavaScript Toolbox plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 12.0.6 via the Assignment Engine fields. This is due to insufficient input sanitization and output escaping on assignment data fields including Expressions, URLs, and Advanced assignment data. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses the CJT block edit screen in the admin dashboard.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
Propose a mitigation on Community Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://gist.github.com/e578d548291225c116a5827ad205a9e9
- https://plugins.trac.wordpress.org/browser/css-javascript-toolbox/tags/12.0.6/controllers/block-ajax.php#L184
- https://plugins.trac.wordpress.org/browser/css-javascript-toolbox/trunk/controllers/block-ajax.php#L184
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3667323%40css-javascript-toolbox&new=3667323%40css-javascript-toolbox
- https://www.wordfence.com/threat-intel/vulnerabilities/id/98ef6eeb-9fd5-4ecc-a75a-e17884b9d41a?source=cve
CWEs
CWE-79
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.