CVE-2026-65646 — CRITICAL (9.9)

Vulnerability 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 Score

9.9

CRITICAL

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-74

References

https://support.plesk.com/hc/en-us/articles/42877023875351-Vulnerability-CVE-202

FAQ

What is CVE-2026-65646?

CVE-2026-65646 is a vulnerability with a CVSS score of 9.9 (CRITICAL). 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.

How severe is CVE-2026-65646?

CVE-2026-65646 has been rated CRITICAL with a CVSS base score of 9.9/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-65646?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.