CVE-2026-104479: Mindstellar Shopclass

Medium severity, CVSS 5.4. EPSS: 0.2% chance of exploitation in the next 30 days.

Shopclass before 6.2.0 contains a stored cross-site scripting vulnerability that allows self-registered non-admin users to inject scripts into item listing descriptions when frontend TinyMCE is enabled. Attackers can submit malicious JavaScript, which ItemActions.php saves without tag stripping, causing it to execute in the site origin for any visitor viewing the listing.

Affected products

• Mindstellar Shopclass: before 6.2.0 (fixed in 6.2.0)

Published 2026-10-03. Last modified 2026-10-06.