CVE-2020-4040: Boltcms Bolt

Medium severity, CVSS 4.3. EPSS: 1.8% chance of exploitation in the next 30 days.

Bolt CMS before version 3.7.1 lacked CSRF protection in the preview generating endpoint. Previews are intended to be generated by the admins, developers, chief-editors, and editors, who are authorized to create content in the application. But due to lack of proper CSRF protection, unauthorized users could generate a preview. This has been fixed in Bolt 3.7.1

Affected products

• Boltcms Bolt: before 3.7.1 (fixed in 3.7.1)

Published 2020-06-08. Last modified 2026-06-17.