CVE-2026-65646: WebPros Plesk

Critical severity, CVSS 9.9. EPSS: 0.7% chance of exploitation in the next 30 days.

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.

Affected products

• WebPros Plesk: before 18.0.79.11 (fixed in 18.0.79.11); from 18.0.80, before 18.0.80.7 (fixed in 18.0.80.7)

Published 2026-08-26. Last modified 2026-09-11.