Risk Letters

Exploited vulnerability

CVE-2026-54420

TLP:CLEAR

LiteSpeed cPanel Plugin UNIX Symbolic Link (Symlink) Following Vulnerability

LiteSpeed cPanel plugin contains a UNIX symbolic link (Symlink) following vulnerability that could allow a user with FTP or web shell access on a shared hosting server running CloudLinux/CageFS.

Facts

  • Vendor: LiteSpeed
  • Product: cPanel Plugin
  • CVSS: 8.5
  • EPSS (probability of exploitation within 30 days): 1.4 %
  • On CISA's Known Exploited Vulnerabilities list since: 15 June 2026
  • First known exploitation: 15 June 2026
  • CISA's deadline for US federal agencies: 18 June 2026
  • Weakness: CWE-61
  • First seen by Risk Letters: 14 June 2026

Members see which Nordic sectors the flaw hits, and what to do about it.

Get the full brief

Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD