CVE-2026-65646

Plesk: Plesk: Remote Privilege Escalation and File Disclosure Vulnerability

Published Aug 26, 2026 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
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. 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.
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'}

cvssV3_0

{'score': 9.9, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'}

Type Values Removed Values Added
Title Plesk DNS Zone Management Authenticated File Disclosure and Privilege Escalation Plesk: Plesk: Remote Privilege Escalation and File Disclosure Vulnerability
Weaknesses CWE-78
References
Metrics threat_severity

None

cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Important

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Webpros
Webpros plesk
Vendors & Products Webpros
Webpros plesk
Type Values Removed Values Added
Title Plesk DNS Zone Management Authenticated File Disclosure and Privilege Escalation
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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
hackerone
Published
Updated
Sep 11, 2026, 5:16 PM
Reserved
Jul 22, 2026, 3:00 PM
Status
Awaiting Analysis
Published
Aug 26, 2026, 10:16 PM
Modified
Sep 11, 2026, 6:16 PM
Severity
Important
Public date
Aug 26, 2026, 9:21 PM