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TI-2026-12282 Aliases CVE-2026-14558GHSA-j5mw-m2j3-5747

WP User Frontend < 4.3.10 - Editor+ PHP Object Injection via AI Form Builder

Priority LOW 35CWE-502Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-502.

Summary

The User Frontend WordPress plugin before 4.3.10 does not properly validate field type definitions and deserialises user-controlled post metadata when rendering submitted posts, allowing users with Editor-level access and above to inject arbitrary PHP objects, which can lead to remote code execution when a suitable POP chain is present on the site.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00777 56th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed User Frontend (Unknown): 4.3.10

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownUser Frontendbefore 4.3.104.3.10Patch availableCNA
  • User Frontend VendorUnknown Affected before 4.3.10 Fixed in 4.3.10 Patch available CNA

Remediation

  • Fix · CNA User Frontend (Unknown) Fixed in 4.3.10

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    User Frontend 4.3.10

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-12291 WP User Frontend < 4.3.10 - Unauthenticated User Email and Phone Disclosure via User DirectoryPriority LOW 30
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-14558
  2. 2026-10-03 Alias added: GHSA-j5mw-m2j3-5747
  3. 2026-10-25 EPSS moved to the 50th–90th percentile

References

Exploit 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences