CVE-2026-57658: Templatespare

Critical severity, CVSS 9.1. EPSS: 0.5% chance of exploitation in the next 30 days.

Administrator Arbitrary File Upload in TemplateSpare <= 4.2.0 versions.

Affected products

• Templatespare Templatespare: up to and including 4.2.0

Published 2026-06-26. Last modified 2026-06-26.