CVE-2021-24963: vulnerability in LiteSpeed Cache
LiteSpeed Cache < 4.4.4 - Admin+ Reflected Cross-Site Scripting
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.7%
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
Unknown · LiteSpeed CacheRelated CVEs — LiteSpeed Cache
In the same product, most dangerous first.
CVE-2021-24964MEDIUMLiteSpeed Cache < 4.4.4 - IP Check Bypass to Unauthenticated Stored XSSEPSS 1.2%CVE-2026-113500HIGHLiteSpeed Cache < 7.9.2 - Unauthenticated Stored XSS via Font Display OptimizationEPSS 0.3%CVE-2026-113499HIGHLiteSpeed Cache < 7.9.2 - Unauthenticated Stored XSS via CDN Inline CSS RewritingEPSS 0.3%CVE-2026-113501LOWLiteSpeed Cache < 7.9.2 - Subscriber+ Pinned Administrative Notice DismissalEPSS 0.2%