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CVE-2026-2126

MEDIUM

5.3

Description

The User Submitted Posts – Enable Users to Submit Posts from the Front End plugin for WordPress is vulnerable to Incorrect Authorization in all versions up to, and including, 20260113. This is due to the `usp_get_submitted_category()` function accepting user-submitted category IDs from the POST body without validating them against the admin-configured allowed categories stored in `usp_options['categories']`. This makes it possible for unauthenticated attackers to assign submitted posts to arbitrary categories, including restricted ones, by crafting a direct POST request with manipulated `user-submitted-category[]` values, bypassing the frontend category restrictions.

CVE Details

CVSS v3.1 Score5.3

SeverityMEDIUM

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published2/18/2026

Last Modified2/18/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-863

References

https://plugins.trac.wordpress.org/browser/user-submitted-posts/tags/20260113/user-submitted-posts.php#L1431(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/user-submitted-posts/tags/20260113/user-submitted-posts.php#L298(security@wordfence.com)

https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3463696%40user-submitted-posts%2Ftrunk&old=3456521%40user-submitted-posts%2Ftrunk&sfp_email=&sfph_mail=(security@wordfence.com)

https://www.wordfence.com/threat-intel/vulnerabilities/id/02c5e3ad-5cc3-40b1-a15a-10d53383abe6?source=cve(security@wordfence.com)

IOC Correlations

No correlations recorded

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