Description
The Multi-column Tag Map plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 17.0.39 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Problem types
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Product status
* (semver)
Timeline
| 2026-01-06: | Disclosed |
Credits
Hardik Patel
References
www.wordfence.com/...-499e-4b08-80fb-0a573594d624?source=cve
plugins.trac.wordpress.org/...p/trunk/mctagmap_functions.php
plugins.trac.wordpress.org/...17.0.39/mctagmap_functions.php
plugins.trac.wordpress.org/...s/17.0.39/mctagmap-options.php