CVE-2026-64637CWE-269privilege-escalation

CVE-2026-64637

Critical · published August 7, 2026

CVSS v3.0
9.9
EPSS
0%
Percentile
39.8
In the wild
Unconfirmed
What it is

Improper privilege management in the XML-RPC API of Plesk before 18.0.80, allows an authenticated reseller to obtain an administrative session for the root user account.

The record
Technical detail
CVSS v3.0
9.9 · CRITICAL
Vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00471 · 39.8th percentile
Weakness
CWE-269 · Improper Privilege Management
Published
2026-08-07T22:17Z
References (1)
https://support.plesk.com/hc/en-us/articles/42432168683799 · [email protected]
EPSS history
Timeline
  • 07 AUG 17:57Z
    Improper privilege management in the XML-RPC API of Plesk before 18.0.80, allows an authenticated reseller to obtain an administrative session for the root…
    cvelistv5