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Description

The User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.3.1 via the payment_page() function due to missing validation on the 'user_id' user controlled key. This makes it possible for unauthenticated attackers to activate a free subscription pack for any user on the site, overwriting their existing paid subscription and causing loss of paid features.

PUBLISHED Reserved 2026-04-02 | Published 2026-07-08 | Updated 2026-07-08 | Assigner Wordfence




MEDIUM: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Problem types

CWE-639 Authorization Bypass Through User-Controlled Key

Product status

Default status
unaffected

Any version
affected

Timeline

2026-03-09:Discovered
2026-04-02:Vendor Notified
2026-07-07:Disclosed

Credits

momopon1415 finder

References

www.wordfence.com/...-1104-4935-8074-af4367c66278?source=cve

plugins.trac.wordpress.org/...geset/3514258/wp-user-frontend

cve.org (CVE-2026-5459)

nvd.nist.gov (CVE-2026-5459)

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