LiteSpeed cPanel Plugin Privilege Escalation Vulnerability

Technical Severity

CVSS v3.1 Metrics

CRITICAL

9.8 / 10

Minimal Risk Critical

Vector Specification

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation Likelihood

EPSS Prediction

7.96 %

Predictive Probability

Percentile Rank

92.2 th

Documented as more likely to be exploited than 92.2% of known CVEs.

Detection Date

May 26, 2026

Remediation Due

May 29, 2026

CISA Catalog Active

Threat Analysis

LiteSpeed cPanel Plugin contains privilege escalation vulnerability that is exposed via the user-end cPanel plugin, which can be abused by any cPanel user account to execute arbitrary scripts with root privileges.

Remediation Directive

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

External Intelligence

https://blog.litespeedtech.com/2026/05/21/security-update-for-litespeed-cpanel-plugin/

NVD

National Vulnerability Database

https://nvd.nist.gov/vuln/detail/CVE-2026-48172