Vulnerability · Published Oct 2, 2026 · Assigned by hackerone
CVE-2026-93029
Critical 9.0
In plain English
A critical-severity cross-site scripting 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 0.5% (higher than 46% of all known vulnerabilities).
Severity (CVSS 3.0)9.0Critical
Exploit odds (30 days)0.5%top 53.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
There is a stored XSS vulnerability allowing arbitrary code execution in the WHM Manage SSL Hosts interface.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Webpros | cPanel | 0 – before 11.138.0.110 – before 11.136.0.450 – before 11.134.0.610 – before 11.110.0.148 |
| Webpros | WP Squared | 0 – before 11.138.1.13 |
Weakness: CWE-79 · Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
References
- https://hackerone.com/reports/4047106
- https://support.cpanel.net/hc/en-us/articles/43845929235351-Security-CVE-2026-93029-Stored-XSS-in-WHM-s-Manage-SSL-Hosts-Interface-September-29-2026
- https://docs.cpanel.net/changelogs/138-change-log/#138011
- https://docs.cpanel.net/changelogs/136-change-log/#136045
- https://docs.cpanel.net/changelogs/134-change-log/#134061
- https://docs.cpanel.net/changelogs/110-change-log/#1100148
- https://docs.wpsquared.com/changelogs/versions/changelog/#138113