Medium severity · published Jul 8, 2026
CVE-2026-5459
User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration <= 4.3.1 - Unauthenticated Insecure Direct Object Reference to Arbitrary User Subscription Overwrite
5.3
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UF
User Frontend: AI Powered Frontend Posting, User Directory, Profile Builder, Membership & User Registration · wedevs
through 4.3.1 · source: vendor
Affected product
UF
User Frontend: AI Powered Frontend Posting, User Directory, Profile Builder, Membership & User Registration
wedevs
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-5459
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-5459
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset/3514258/wp-user-frontend
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/a02d9a01-1104-4935-8074-af4367c66278?source=cve
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