CVE-2026-14558: CWE-502 Deserialization of Untrusted Data in User Frontend
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.
CVE-2026-14558: CWE-502 Deserialization of Untrusted Data in User Frontend
Description
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.
CVSS v3.1
Score 7.2high
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-07-03T09:29:06.740Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a913ad1acd9273b4992fa0f
Added to database: 08/28/2026, 07:37:53 UTC
Last updated: 08/29/2026, 01:51:59 UTC
Views: 14
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