VulnerabilityAwaiting Analysis

CVE-2026-65646

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.

CRITICAL 9.9EPSS 0.39%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.39%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 3.0: 9.9 CRITICALCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS: 0.39% probability · 32th percentile
CISA KEV: Not listed
Weakness: CWE-74
Source: support@hackerone.com

References

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

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.