CVE-2022-21643: Useful Simple Open-Source CMS Project Useful Simple Open-Source CMS

Critical severity, CVSS 9.8. EPSS: 1.2% chance of exploitation in the next 30 days.

USOC is an open source CMS with a focus on simplicity. In affected versions USOC allows for SQL injection via register.php. In particular usernames, email addresses, and passwords provided by the user were not sanitized and were used directly to construct a sql statement. Users are advised to upgrade as soon as possible. There are not workarounds for this issue.

Affected products

• Useful Simple Open-Source CMS Project Useful Simple Open-Source CMS: before pb2.4bfx2 (fixed in pb2.4bfx2)

Published 2022-01-04. Last modified 2026-06-17.