Vulnerability · Published Sep 23, 2026 · Assigned by hackerone

CVE-2026-87899

Critical 9.4

In plain English

A critical-severity security flaw in cPanel from WebPros. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities).

Severity (CVSS 4.0)9.4Critical

Exploit odds (30 days)0.6%top 50.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Execution with unnecessary privileges in cPanel allows remote authenticated users to execute arbitrary code with root privileges.

Affected products (as reported)

Vendor	Product	Versions
WebPros	cPanel	11.120.0.0 – before 11.134.0.5711.136.0.0 – before 11.136.0.4111.138.0.0 – before 11.138.0.8

Weakness: CWE-250 · 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

References

https://support.cpanel.net/hc/en-us/articles/43591715125271