CVE-2021-24963

MEDIUM 4.8CVE-2021-24963 · Published 03/01/2022 · updated 17/06/2026

In short

CVE-2021-24963 is a MEDIUM (CVSS 4.8) vulnerability affecting litespeed cache (litespeedtech).
Chance of exploitation in the next 30 days (EPSS): 0.68%, higher than 52.2% of all vulnerabilities.
Fix: update to 4.4.4 or later.

Package	Affected versions	Patched versions
litespeed cache litespeedtech	`< 4.4.4`	`4.4.4`

Description

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

References

plugins.trac.wordpress.org/changeset/2634373 · Patch
wpscan.com/vulnerability/7f8b4275-7586-4e04-afd9-d12bdab6ba9b · Exploit

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Package

Affected versions

Patched versions

litespeed cache

litespeedtech

< 4.4.4

4.4.4

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