CVE-2026-54420: HIGH (CVSS 8.5), Actively Exploited (CISA KEV)

HIGH (CVSS 8.5), Actively Exploited (CISA KEV), EPSS 1.3%. LiteSpeed cPanel plugin before 2.4.8 (as distributed in LiteSpeed WHM PlugIn before 5.3.2.0) mishandles symlinks provided by a user with FTP or web shell access on a shared hosting server running CloudLinux/CageFS, as exploited in the wild in May 2026.