ACF Flexible Layouts Manager <= 1.1.6 - Missing Authorization to Unauthenticated Custom Field Update
Priority LOW 34CWE-862Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00218 12th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| valentinpellegrin | ACF Flexible Layouts Manager | up to 1.1.6 | — | No fix listed | CNA |
- ACF Flexible Layouts Manager Vendorvalentinpellegrin Affected up to 1.1.6 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-12937
- 2026-10-03 Alias added: GHSA-9cg3-r62g-92w5
References
Sources
- CVE-2025-12937 · CVE Program
- CVE-2025-12937 · NVD
- FIRST EPSS
- GHSA-9cg3-r62g-92w5 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences