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CVE-2026-14558highCWE-502

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

41Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 7.2epss 0.5%
exploitation probability
0.5%top 56% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Affected products
Unknown · User Frontend
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.