CVE-2026-2233

User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration <= 4.2.8 - Missing Authorization to Unauthenticated Arbitrary Post Modification via 'post_id' Parameter

The User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the draft_post() function in all versions up to, and including, 4.2.8. This makes it possible for unauthenticated attackers to modify arbitrary posts (e.g. unpublish published posts and overwrite the contents) via the 'post_id' parameter.

We have discovered 1,497 live websites that are affected by CVE-2026-2233.

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Affected Software

Product  Wp User Frontend
Category Wordpress Plugins
Vulnerable Domains1,497 live websites (99% of Wp User Frontend install base)
Vulnerable Versions
  • from 0 through 4.2.8
Vulnerable Versions Count49 versions ( 98% of all versions)


Common Weakness Enumeration

CWE-862 Missing Authorization



Details

  • Published - Mar 15, 2026
  • Updated - Mar 16, 2026

Credits

  • Supakiad S. (finder)

Website Distribution by Country

Number of websites using CVE-2026-2233
United States453 websites


Germany131 websites
France101 websites
GB80 websites
Italy62 websites
Cyprus61 websites
Brazil57 websites
India51 websites
Japan33 websites
Netherlands27 websites

Website Distribution by TLD

Number of websites using CVE-2026-2233
.com632 websites
.org117 websites
.de65 websites
.net57 websites
.it44 websites
.com.br42 websites
.fr39 websites
.co.uk36 websites
.nl24 websites
.ch19 websites

Vulnerable Versions

Vulnerable versions are highlighted in red

Websites affected by CVE-2026-2233

Top websites that are affected by CVE-2026-2233. Please click on the "Contact us" link to get more information.
DomainCountryRankContacts
**********************.com United States**,***
***********.pl Poland***,***
***.***.uk United States***,***
**********.org France***,***
************.com United States***,***
***************.com United States***,***
********.com Canada***,***
****.org Switzerland***,***
***.***.py Paraguay***,***
********.org Italy***,***
See full domain list

FAQ

CVE-2026-2233 is Missing Authorization in Wp User Frontend
A total of 1,497 websites have been identified as vulnerable to CVE-2026-2233, based on global website indexing conducted by WebTechSurvey.
The Wp User Frontend is affected by the CVE-2026-2233 vulnerability.
Wp User Frontend versions up to and including 4.2.8 are vulnerable to CVE-2026-2233.