The User Submitted Posts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's [usp_gallery] shortcode in versions up to, and including, 20230811 due to insufficient input sanitization and output escaping on user supplied attributes like 'before'. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Related CVEs

CVE-2023-4779

Key Information

GHSA ID

GHSA-3c82-f6j3-5x2g

Published

September 6, 2023 9:30 AM

Last Modified

April 4, 2024 7:31 AM

CVSS Score

5.0 /10

Primary Ecosystem

Unknown

Primary Package

Unknown

GitHub Reviewed

✗ No

Dataset

Last updated: July 5, 2025 6:26 AM

Data from GitHub Advisory Database. This information is provided for research and educational purposes.