CVE-2022-43690: Concretecms Concrete CMS

Medium severity, CVSS 6.3. EPSS: 0.6% chance of exploitation in the next 30 days.

Concrete CMS (formerly concrete5) below 8.5.10 and between 9.0.0 and 9.1.2 did not use strict comparison for the legacy_salt so that limited authentication bypass could occur if using this functionality. Remediate by updating to Concrete CMS 9.1.3+ or 8.5.10+.

Affected products

• Concretecms Concrete CMS: before 8.5.10 (fixed in 8.5.10); from 9.0.0, up to and including 9.1.2

Published 2022-11-14. Last modified 2026-06-17.