CVE-2026-48172

CriticalActively exploited (CISA KEV)

Description

LiteSpeed User-End cPanel Plugin before 2.4.5 allows privilege escalation (possibly to root), as exploited in the wild in May 2026. Detection is best done via a command line of grep -rE "cpanel_jsonapi_func=redisAble" /var/cpanel/logs /usr/local/cpanel/logs/ 2>/dev/null in Bash. If you get no output, you have not been hit with exploitation of the vulnerability. If there is output, we recommend you examine the IP addresses in the list, determine if they are valid IP addresses, and if not, block them. To determine damage done, examine the system logs for use by the detected IP addresses. The issue is related to mishandling of Redis enable/disable features. The recommended minimum version is 2.4.7.

SeverityCritical
CVSS9.8
Exploit probability—
ProductLiteSpeed cPanel Plugin
PublishedMay 21, 2026
First seenMay 21, 2026
Added to KEVMay 26, 2026
Weakness typeCWE-266CWE-266

How to fix

CISA required action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

CISA due date: May 29, 2026
Update
  • litespeedtech litespeed_cpanel_plugin2.4.7 or later
  • litespeedtech litespeed_whm_plugin5.3.1.0 or later

Affected products

ProductAffected versionsFixed in
litespeedtech litespeed_cpanel_pluginv < 2.4.72.4.7
litespeedtech litespeed_whm_pluginv < 5.3.1.05.3.1.0

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