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TI-2026-15615 Aliases CVE-2026-19116GHSA-f6hp-2qj5-48vv

WP User Frontend < 4.3.11 - Subscriber+ PHP Object Injection via Frontend Post Edit Form

Priority MEDIUM 41CWE-502Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
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 4.3.11 does not prevent user-supplied field values from being deserialized when a submitted post is reopened in its frontend editing form, allowing authenticated users with subscriber-level access and above to perform PHP Object Injection, which may lead to remote code execution when a suitable gadget chain is present on the site.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00746 55th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed User Frontend (Unknown): 4.3.11

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 4.3.114.3.11Patch availableCNA
  • User Frontend VendorUnknown Affected before 4.3.11 Fixed in 4.3.11 Patch available CNA

Remediation

  • Fix · CNA User Frontend (Unknown) Fixed in 4.3.11

Fixed in the same release

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

  • Release ·

    User Frontend 4.3.11

    2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-14402 WP User Frontend < 4.3.11 - Unauthenticated Post Creation via Subscription-Gated FormPriority LOW 30
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-19116
  2. 2026-10-03 Alias added: GHSA-f6hp-2qj5-48vv
  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