CVE-2021-21427: Openmage Magento

High severity, CVSS 7.2. EPSS: 1.1% chance of exploitation in the next 30 days.

Magento-lts is a long-term support alternative to Magento Community Edition (CE). A vulnerability in magento-lts versions before 19.4.13 and 20.0.9 potentially allows an administrator unauthorized access to restricted resources. This is a backport of CVE-2021-21024. The vulnerability is patched in versions 19.4.13 and 20.0.9.

Affected products

• Openmage Magento: before 19.4.13 (fixed in 19.4.13); from 20.0.0, before 20.0.9 (fixed in 20.0.9)

Published 2021-04-21. Last modified 2026-06-17.