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.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 1
- First seenCVSS 4.4NVD modified 2026-10-14 19:10
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 5
- 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