CVE-2026-14558: high-severity vulnerability in User Frontend
WP User Frontend < 4.3.10 - Editor+ PHP Object Injection via AI Form Builder
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
41Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 7.2epss 0.8%
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 Frontendpublic PoCs found — 1
cve_referencewpscan.com/vulnerability/217303f4-4363-46f6-8aee-8e0c1aedc271/unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — User Frontend
In the same product, most dangerous first.
CVE-2026-19116HIGHWP User Frontend < 4.3.11 - Subscriber+ PHP Object Injection via Frontend Post Edit FormEPSS 0.7%CVE-2026-14567MEDIUMWP User Frontend < 4.3.10 - Unauthenticated User Email and Phone Disclosure via User DirectoryEPSS 0.3%CVE-2026-17563MEDIUMWP User Frontend < 4.3.11 - Unauthenticated Post Creation via Subscription-Gated FormEPSS 0.3%CVE-2026-75823HIGHWP User Frontend 3.5.29 - 4.3.11 - Unauthenticated Privilege Escalation via Registration Role EncryptionEPSS 0.3%CVE-2026-75824MEDIUMWP User Frontend 2.5.8 - 4.3.11 - Unauthenticated Account Creation with Registration DisabledEPSS 0.2%CVE-2026-115277MEDIUMWP User Frontend < 4.3.14 - Reflected XSS via 'field_attr' ParameterEPSS 0.2%