CVE-2026-54420 KEV
8.5
HIGH · CVSS 3.1 · EPSS 0.8% (pctl 55)
Patch first
On CISA KEV — known exploited in the wild, due 2026-06-18.
Description
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.
Scoring
| CVSS | 8.5 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H |
| EPSS | 0.81% — more likely to be exploited than 55% of all CVEs |
| Weakness | CWE-61 |
| On CISA KEV | yes — remediate by 2026-06-18 |
| Public exploit | none known |
| Published | 2026-06-14 |
| Last modified | 2026-07-23 |
CISA KEV
| Name | LiteSpeed cPanel Plugin UNIX Symbolic Link (Symlink) Following Vulnerability |
|---|---|
| Added | 2026-06-15 |
| Due | 2026-06-18 |
| Vendor / product | LiteSpeed / cPanel Plugin |
| Ransomware use | none reported |
Affected (2)
| Vendor | Product |
|---|---|
| litespeedtech | litespeed cpanel plugin |
| litespeedtech | litespeed whm plugin |
References
→ the Explorer · watch your stack · NVD