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CVE-2026-12954: Mapster WP Maps

Severity

8.8 (HIGH)

Vendor

MAPSTER

Affected versions

0 through 1.23.0

Patch status

Unknown

Published

2026-09-18T08:16:59.100

Modified

2026-09-18T13:23:37.403

Why it matters

This matters because the affected product may be exposed on public websites. A vulnerable plugin can create a direct path to site compromise, malicious code deployment, or data theft.

Recommended admin actions

• Review and patch based on exposure, asset criticality, and business impact.
• Check whether the affected WordPress plugin or theme is installed.
• Update, disable, or remove the affected component if present.
• Compare installed versions against the affected version range in the advisory.

Technical summary

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.

View the official NVD record for CVE-2026-12954

CVE data is sourced from NVD/CNA records and optional enrichment. Validate against the vendor advisory before taking production action.