Improper neutralization of special elements in Plesk allows remote authenticated users to disclose arbitrary local files and escalate privileges.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

No data.

No data.

No data.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://support.plesk.com/hc/en-us/articles/42877023875351-Vulnerability-CVE-2026-65646-in-Plesk-s-DNS-zone-management-functionality cve-icon cve-icon
History

Wed, 26 Aug 2026 22:00:00 +0000

Type Values Removed Values Added
Description Improper neutralization of special elements in Plesk allows remote authenticated users to disclose arbitrary local files and escalate privileges.
Weaknesses CWE-74
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: hackerone

Published:

Updated: 2026-08-26T21:21:41.144Z

Reserved: 2026-07-22T15:00:06.104Z

Link: CVE-2026-65646

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-26T22:16:26.020

Modified: 2026-08-26T22:16:26.020

Link: CVE-2026-65646

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses