---
id: CVE-2026-65646
title: >-
  Improper neutralization of special elements in in Plesk's DNS zone management
  functionality allows remote authenticated users to disclose arbitrary local
  files and escalate privileges.
summary: >-
  Improper neutralization of special elements in in Plesk's DNS zone management
  functionality allows remote authenticated users to disclose arbitrary local
  files and escalate privileges.
severity: critical
cvss: 9.9
cvssVector: 'CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-74
vendor: WebPros
product: Plesk
affected:
  - Plesk < 18.0.79.11
  - Plesk >= 18.0.80 < 18.0.80.7
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-08-27T13:01:50.922762Z'
published: '2026-08-26'
updated: '2026-09-11'
sourceUpdated: '2026-09-11T17:16:03.698Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-65646'
references:
  - url: >-
      https://support.plesk.com/hc/en-us/articles/42877023875351-Vulnerability-CVE-2026-65646-in-Plesk-s-DNS-zone-management-functionality
tags:
  - cve.org
epss: 0.00697
epssPercentile: 0.50951
ingestedAt: '2026-09-14T00:35:28.536Z'
---

## Overview

Improper neutralization of special elements in in Plesk's DNS zone management functionality allows remote authenticated users to disclose arbitrary local files and escalate privileges.

## Affected

- `Plesk < 18.0.79.11`
- `Plesk >= 18.0.80 < 18.0.80.7`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.