Web hosts are scrambling to fix the bug under active attack by hackers. One company said hackers have been abusing the bug for months.
CISA added CVE-2026-54420 to KEV, requiring federal agencies to patch LiteSpeed cPanel root escalation by June 18, 2026.
Attackers can exploit a “critical” security vulnerability in the cPanel and WebHost Manager (WHM) web server administration software to gain unauthorized access. So far, there are no reports of ...