CVE-2021-24963: Litespeedtech LiteSpeed Cache

Medium severity, CVSS 4.8. EPSS: 0.7% chance of exploitation in the next 30 days.

The LiteSpeed Cache WordPress plugin before 4.4.4 does not escape the qc_res parameter before outputting it back in the JS code of an admin page, leading to a Reflected Cross-Site Scripting

Affected products

• Litespeedtech LiteSpeed Cache: before 4.4.4 (fixed in 4.4.4)

Published 2022-01-03. Last modified 2026-06-17.