Vulnerability Description
The Mapster WP Maps plugin for WordPress is vulnerable to Arbitrary User Meta Write in all versions up to, and including, 1.23.0 via the `my_profile_update()` function. This is due to the function performing no nonce verification, no capability check, and no allowlist validation on the meta key supplied via the `acf-photo-gallery-groups` POST parameter before passing both the meta key and its corresponding value directly to `update_user_meta()`. This makes it possible for authenticated attackers, with Subscriber-level access and above, to update arbitrary user meta values, though privilege escalation is not possible.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/mapster-wp-maps/tags/1.21.0/includes/
- https://plugins.trac.wordpress.org/browser/mapster-wp-maps/tags/1.21.0/includes/
- https://plugins.trac.wordpress.org/browser/mapster-wp-maps/tags/1.23.0/includes/
- https://plugins.trac.wordpress.org/browser/mapster-wp-maps/tags/1.23.0/includes/
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3611280%40mapster-wp-
- https://www.wordfence.com/threat-intel/vulnerabilities/id/a70757f7-63a0-452a-a07
FAQ
What is CVE-2026-12954?
CVE-2026-12954 is a vulnerability with a CVSS score of 8.8 (HIGH). The Mapster WP Maps plugin for WordPress is vulnerable to Arbitrary User Meta Write in all versions up to, and including, 1.23.0 via the `my_profile_update()` function. This is due to the function per...
How severe is CVE-2026-12954?
CVE-2026-12954 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-12954?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.