Description (CNA)
cPanel and WHM versions after 11.40 contain an authentication bypass vulnerability in the login flow that allows unauthenticated remote attackers to gain unauthorized access to the control panel.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| WebPros / cPanel | affected 11.40.0.0 before 11.86.0.41; affected 11.88.0.0 before 11.94.0.28; affected 11.96.0.0 before 11.102.0.39; affected 11.104.0.0 before 11.110.0.97; affected 11.112.0.0 before 11.118.0.63; affected 11.120.0.0 before 11.124.0.35; affected 11.126.0.0 before 11.126.0.54; affected 11.128.0.0 before 11.130.0.19; affected 11.132.0.0 before 11.132.0.29; affected 11.134.0.0 before 11.134.0.20; affected 11.136.0.0 before 11.136.0.5 |
| WebPros / WP Squared | affected 0 before 11.136.1.7 |
| WebPros / WHM | affected 11.40.0.0 before 11.86.0.41; affected 11.88.0.0 before 11.94.0.28; affected 11.96.0.0 before 11.102.0.39; affected 11.104.0.0 before 11.110.0.97; affected 11.112.0.0 before 11.118.0.63; affected 11.120.0.0 before 11.124.0.35; affected 11.126.0.0 before 11.126.0.54; affected 11.128.0.0 before 11.130.0.19; affected 11.132.0.0 before 11.132.0.29; affected 11.134.0.0 before 11.134.0.20; affected 11.136.0.0 before 11.136.0.5 |
CWE
CWE-306
References
- https://support.cpanel.net/hc/en-us/articles/40073787579671-cPanel-WHM-Security-Update-04-28-2026
- https://docs.cpanel.net/release-notes/release-notes
- https://docs.wpsquared.com/changelogs/versions/changelog/#13617
- https://www.namecheap.com/status-updates/ongoing-critical-security-vulnerability-in-cpanel-april-28-2026
- https://www.vulncheck.com/advisories/cpanel-and-whm-authentication-bypass-via-login-flow
ADP enrichment
No English description supplied.
No English description supplied.