CVE-2026-93029
cPanel: There is a stored XSS vulnerability allowing arbitrary code execution in the WHM Manage SSL Hosts interface.
Webpros cPanelApplications & CMS
CVSS
9.0CriticalExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.52%Chance of exploitation activity in the next 30 days, higher than 43% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
- 11.138.0.11cPanelCVE List
- 11.136.0.45cPanelCVE List
- 11.134.0.61cPanelCVE List
- 11.110.0.148cPanelCVE List
- 11.138.1.13WP SquaredCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Description
There is a stored XSS vulnerability allowing arbitrary code execution in the WHM Manage SSL Hosts interface.
Text from CVE List
Affected versions 5
- cPanelaffected: all versions before 11.138.0.11CVE List
- cPanelaffected: all versions before 11.136.0.45CVE List
- cPanelaffected: all versions before 11.134.0.61CVE List
- cPanelaffected: all versions before 11.110.0.148CVE List
- WP Squaredaffected: all versions before 11.138.1.13CVE List
References 7
- docs.cpanel.net/changelogs/138-change-log/#138011Fixvia CVE List
- docs.cpanel.net/changelogs/136-change-log/#136045Fixvia CVE List
- docs.cpanel.net/changelogs/134-change-log/#134061Fixvia CVE List
- docs.cpanel.net/changelogs/110-change-log/#1100148Fixvia CVE List
- docs.wpsquared.com/changelogs/versions/changelog/#138113Fixvia CVE List
- support.cpanel.net/hc/en-us/articles/43845929235351-Security-CVE-2026-93029-Stored-XSS-in-WHM-s-Manage-SSL-Hosts-Interface-September-29-2026Advisoryvia CVE List
- hackerone.com/reports/4047106Referencevia CVE List