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Actively exploited · Published May 21, 2026 · Assigned by mitre

CVE-2026-48172

Critical 10.0 Exploited

In plain English

A critical-severity security flaw in cPanel Plugin from LiteSpeed Technologies. Attackers are actively exploiting it in the wild (listed by CISA on May 26, 2026). The chance it is exploited in the next 30 days is estimated at 17.9% (higher than 97% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Severity (CVSS 4.0)10.0Critical
Exploit odds (30 days)17.9%top 2.8% of all CVEs
Exploited in the wildYesCISA KEV since May 26, 2026
Attack tooling1Public PoC

CISA guidance

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

Federal agencies must remediate by May 29, 2026.

Official 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.

Affected products (as reported)

VendorProductVersions
LiteSpeed Technologies cPanel Plugin 2.3 – before 2.4.7
LiteSpeed Technologies WHM Plugin 0 – before 5.3.1.0

Weakness: CWE-266 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

References