CVE-2026-0913CWE-79

User Submitted Posts <= 20260110 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'usp_access' Shortcode

Medium · published January 16, 2026

CVSS v3.1
6.4
EPSS
0%
Percentile
15.8
In the wild
Unconfirmed
What it is

The User Submitted Posts – Enable Users to Submit Posts from the Front End plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'usp_access' shortcode in all versions up to, and including, 20260110 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The record
Technical detail
CVSS v3.1
6.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00252 · 15.8th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-01-16T08:23Z
EPSS history
Timeline
  • 16 JAN 08:23Z
    User Submitted Posts <= 20260110 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'usp_access' Shortcode
    cvelistv5