User Submitted Posts – Enable Users to Submit Posts from the Front End: A security weakness
User Submitted Posts – Enable Users to Submit Posts from the Front End is affected by a security weakness. The vulnerable path is reachable without authentication. The resulting impact depends on how the affected component exposes the vulnerable operation.
- Component
- User Submitted Posts – Enable Users to Submit Posts from the Front End
- Plugin slug
user-submitted-posts- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Feb 18, 2026
This CVE was published Feb 18, 2026 and is one of 11 known issues for this plugin.
Update, patch or deactivate.
Update User Submitted Posts – Enable Users to Submit Posts from the Front End to a release outside the affected range, or disable and remove it until a fixed version is available.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical 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 / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N