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.
History

Sat, 19 Sep 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Sat, 19 Sep 2026 03:45:00 +0000

Type Values Removed Values Added
First Time appeared Mapster
Mapster mapster Wp Maps
Wordpress
Wordpress wordpress
Vendors & Products Mapster
Mapster mapster Wp Maps
Wordpress
Wordpress wordpress

Fri, 18 Sep 2026 07:45:00 +0000

Type Values Removed Values Added
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.
Title Mapster WP Maps <= 1.23.0 - Authenticated (Subscriber+) Arbitrary User Meta Write via 'acf-photo-gallery-groups' Parameter
Weaknesses CWE-20
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published: 2026-09-18T07:40:02.971Z

Updated: 2026-09-19T14:21:51.866Z

Reserved: 2026-06-22T21:18:38.522Z

Link: CVE-2026-12954

cve-icon Vulnrichment

Updated: 2026-09-19T14:13:54.459Z

cve-icon NVD

Status : Deferred

Published: 2026-09-18T08:16:59.100

Modified: 2026-09-19T15:16:58.133

Link: CVE-2026-12954

cve-icon Redhat

No data.