Vulnerability · Published Sep 23, 2026 · Assigned by hackerone
CVE-2026-87898
Critical 9.4
In plain English
A critical-severity OS command injection in Plesk extension "Site Import" from WebPros. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 65% of all known vulnerabilities).
Severity (CVSS 4.0)9.4Critical
Exploit odds (30 days)1.1%top 35.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
OS command injection in Plesk allows remote authenticated users to execute arbitrary code with root privileges.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| WebPros | Plesk extension "Site Import" | 1.6.6 – through 1.12.1 |
Weakness: CWE-78 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H