CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Called exploited the same day it was disclosed.
Measured from the CVE publication date to the earliest of 3 KEV catalogues that list it.
The life of this vulnerability
- CVE published
- First KEV listingsame day
- Last KEV listing5d
- Last sighting42d
Gaps are compressed to equal steps. The elapsed time is printed under each.
Which catalogues call it exploited
- CISA KEVUS federallisted May 26, 2026
- EUVDENISA, European Unionlisted May 26, 2026
- VulnCheck KEVcommercial researchlisted May 21, 2026
- CIRCLaggregator, mirrors the abovelisted May 26, 2026, not counted
3 catalogues list it. CIRCL aggregates the others and is shown but not counted.
Public exploitation evidence
- reported exploitationasec.ahnlab.com/en/94360/
- reported exploitationwww.cyfirma.com/research/tracking-ransomware-may-2026/
- reported exploitationwww.cisa.gov/sites/default/files/feeds/known_exploited_vulne
- reported exploitationblog.litespeedtech.com/2026/05/21/security-update-for-litesp
- reported exploitationwww.cve.org/CVERecord?id=CVE-2026-48172
5 public reports collected from VulnCheck and CIRCL, first on May 21, 2026. Each links to its original source. We have not verified them.
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.
Required action (CISA)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.