5.3
MediumCVSS 3.1 · from Wordfence
CVE-2026-2126
User Submitted Posts <= 20260113 - Incorrect Authorization to Unauthenticated Category Restriction Bypass via 'user-submitted-category' Parameter
User Submitted Posts – Enable Users to Submit Posts from the Front End · Incorrect authorization · CWE-863AffectedUser Submitted Posts – Enable Users to Submit Posts from the Front End
FixNo fix listed yet.
PublishedFeb 18, 09:25 · Wordfence
ScoredFeb 18 · 5.3 · Wordfence
Exploit code publicNone known · checked 21:18 UTC
ExploitedNone known · CISA KEV checked 22:06 UTC
What we know
No known exploitation. CISA KEV, checked 22:06 UTC.
No public exploit code known. Exploit-DB, Metasploit, Nuclei, checked 21:18 UTC.
An attacker only needs network access to the target. No login needed. CVSS: network, no privileges.
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.
From Wordfence
Affected and fixed versions
ProductAffectedFixed inUser Submitted Posts – Enable Users to Submit Posts from the Front Endup to 20260113–
Exploit code
Exploit-DBnone knownMetasploitnone knownNucleinone known