CVE-2026-42458: Openmage Magento-LTS

Medium severity, CVSS 5.3. EPSS: 0.4% chance of exploitation in the next 30 days.

Magento Long Term Support (LTS) is an unofficial, community-driven project provides an alternative to the Magento Community Edition e-commerce platform with a high level of backward compatibility. Prior to 20.18.0, there is a reflected XSS vulnerability under admin panel -> System -> Import/Export -> Dataflow - Profiles. This vulnerability is fixed in 20.18.0.

Affected products

• Openmage Magento-LTS: before 20.18.0 (fixed in 20.18.0)

Published 2026-05-15. Last modified 2026-06-17.