WP User Frontend – Registration, User Profile, Membership, Content Restriction, User Directory, and Frontend Post Submiss, CVE-2026-14558

CVE, Research URL: CVE-2026-14558
Home page URL: Security reports for WP User Frontend – Registration, User Profile, Membership, Content Restriction, User Directory, and Frontend Post Submiss
Application: WP User Frontend – Registration, User Profile, Membership, Content Restriction, User Directory, and Frontend Post Submiss
Published on: Aug 28, 2026
Research 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.
Affected versions: max 4.3.10.
Status: vulnerable

WP User Frontend &#8211; Registration, User Profile, Membership, Content Restriction, User Directory, and Frontend Post Submiss, CVE-2026-14558