Is CVE-2026-2126 actively exploited?

No active exploitation of CVE-2026-2126 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-2126 be exploited remotely?

Yes. CVE-2026-2126 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-2126?

CVE-2026-2126 has a CVSS score of 5.3 (MEDIUM) and an EPSS exploitation probability of 0.02%.

HOME VULNERABILITIESCVE-2026-2126

MEDIUM

CVE-2026-2126

CWE-863Published: February 18, 2026· Updated: Feb 18, 2026

5.3

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:3.5th

Official 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.

NVD Source

Technical Analysis

CVE-2026-2126 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.