Vulnerability · Published Sep 10, 2026 · Assigned by hackerone
CVE-2026-68488
Critical 9.9
In plain English
A critical-severity security flaw in Plesk from WebPros. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities).
Severity (CVSS 3.0)9.9Critical
Exploit odds (30 days)0.4%top 65.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A Time-of-check Time-of-use (TOCTOU) race condition leading to insecure symlink following in Plesk causes local privilege escalation to root via arbitrary file/directory ownership takeover.
Affected products (as reported)
Weakness: CWE-367 · Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H