---
cve: "CVE-2026-54420"
severity: "HIGH"
cvss: 8.5
epss: "1.4%"
vendor: "LiteSpeed Technologies"
kev: true
exploited: true
published: "2026-06-14 04:16:28"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-17T15:26:39+02:00"
---

# CVE-2026-54420

> 8.5 HIGH · ⚠️ CISA KEV (94 Tage) · 🔓 Exploited

## Beschreibung

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.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Hoch | good |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |
| S Scope | Verändert | bad |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Referenzen

- <https://www.litespeedtech.com/products/litespeed-web-server/control-panel-support/cpanel>
- <https://blog.litespeedtech.com/2026/06/01/security-update-for-litespeed-cpanel-plugin-2/>
- <https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-54420>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-54420) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_