CVE-2025-12937

MEDIUM 6.5

ACF Flexible Layouts Manager <= 1.1.6 - Missing Authorization to Unauthenticated Custom Field Update

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

The ACF Flexible Layouts Manager plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'acf_flm_update_template_with_pasted_layout' function in all versions up to, and including, 1.1.6. This makes it possible for unauthenticated attackers to update custom field values on individual posts and pages.

CWE	CWE-862
Vendor	valentinpellegrin
Product	acf flexible layouts manager
Published	Nov 18, 2025
Last Updated	Apr 8, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

valentinpellegrin / ACF Flexible Layouts Manager

0 ≤ 1.1.6

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/915cce97-8305-4249-b2d3-c4da2f59a95a?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/acf-flexible-layouts-manager/trunk/includes/ajax/ajax-paste.php#L4

Credits

Ahmad Salem