---
title: "CVE-2026-54420: UNIX Symbolic Link (Symlink) Following | CubePath"
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…"
language: en
source: https://cubepath.com/security/cve/CVE-2026-54420
---

# CVE-2026-54420: UNIX Symbolic Link (Symlink) Following | CubePath

## 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.

Official description from the CVE record, published by mitre. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-54420)

## Key data

### CVSS 3.1 High 8.5

Score published by mitre in the CVE record.

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

| Metric                 | Value   | What it means                                                                             |
| ---------------------- | ------- | ----------------------------------------------------------------------------------------- |
| Attack vector          | Network | The vulnerable component can be reached over a network, possibly from the Internet.       |
| Attack complexity      | High    | The attack depends on conditions outside the attacker's control, so it takes preparation. |
| Privileges required    | Low     | A basic user account is needed.                                                           |
| User interaction       | None    | No action from any user is needed.                                                        |
| Scope                  | Changed | The impact can reach other components beyond the vulnerable one.                          |
| Confidentiality impact | High    | Serious or total effect on the secrecy of data.                                           |
| Integrity impact       | High    | Serious or total effect on the trustworthiness of data.                                   |
| Availability impact    | High    | Serious or total effect on availability.                                                  |

CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at [first.org/cvss](https://www.first.org/cvss/) .

### EPSS

Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days.

Score

0.01439 (1.4% probability)

Percentile

73.4%

Scores of

Nov 10, 2026

Model

v2026.06.15

### CISA Known Exploited Vulnerabilities

This CVE is listed in the CISA KEV catalog.

Name in the catalog

LiteSpeed cPanel Plugin UNIX Symbolic Link (Symlink) Following Vulnerability

Added to the catalog

Jun 15, 2026

Federal due date

Jun 18, 2026

### CISA assessment as of Jun 15, 2026

Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA.

Exploitation

Recorded by CISA as active

Automatable

no

Technical impact

total

### Weakness (CWE)

CWE catalog version 5.0.

CWE names: Copyright © 2006-2026, The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CWE license.

- [CWE-61](https://cwe.mitre.org/data/definitions/61.html) UNIX Symbolic Link (Symlink) Following

## Affected products

Products listed in the CVE record, as the CNA published them.

- LiteSpeed Technologies cPanel Plugin

  - affected: 2.3 up to before 2.4.8

## References

Links listed in the CVE record. They lead to other sites, which CubePath does not control.

- [litespeedtech.com/products/litespeed-web-server/control-pan…](https://www.litespeedtech.com/products/litespeed-web-server/control-panel-support/cpanel)
- [blog.litespeedtech.com/2026/06/01/security-update-for-lites…](https://blog.litespeedtech.com/2026/06/01/security-update-for-litespeed-cpanel-plugin-2/)

## Timeline

1. ID reserved Jun 14, 2026
2. Record published Jun 14, 2026
3. Added to CISA KEV Jun 15, 2026
4. Record last updated Jun 16, 2026

## Look up another CVE

## About CubePath

CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection.

[Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection)

Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:11 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)