Remote File Disclosure Vulnerability in Plesk by Plesk
CVE-2026-65646

8.7HIGH

Key Information:

Vendor

Webpros

Status
Plesk
Vendor
CVE Published:
26 August 2026

What is CVE-2026-65646?

An improper neutralization vulnerability in Plesk allows remote authenticated users to exploit the DNS zone management functionality. This can lead to the disclosure of arbitrary local files and privilege escalation, posing serious security risks to affected systems. Maintaining updated versions and implementing security best practices is crucial to mitigate potential exploits.

Affected Version(s)

Plesk 0 < 18.0.79.11

Plesk 18.0.80 < 18.0.80.7

References

https://support.plesk.com/hc/en-us/articles/4287702387535...

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

CVSS V3.0

Score:
9.9
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Aziz Knani
.