CVE-2021-24782: Flex Local Fonts Project Flex Local Fonts

Medium severity, CVSS 4.8. EPSS: 0.6% chance of exploitation in the next 30 days.

The Flex Local Fonts WordPress plugin through 1.0.0 does not escape the Class Name field when adding a font, which could allow hight privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed.

Affected products

• Flex Local Fonts Project Flex Local Fonts: up to and including 1.0.0

Published 2021-12-13. Last modified 2026-06-17.