Security Advisory: cPanel Email Filters RCE
This is a security release for cPanel & WHM. Update the product on every affected server to the patched release — `sudo /scripts/upcp --force` — there is no workaround, and unpatched servers remain exposed until updated.
Affected Versions
TUI 18.0.42 and earlier
Patched Version
TUI 18.0.48
Default Update CMD
yum update -yFix Commands
CentOS 7 / CloudLinux 7
yum clean all
/scripts/upcp --forceAlmaLinux 9 / CloudLinux 9
dnf clean metadata
/scripts/upcp --forceWhat this means under a SharedLicense license
Your SharedLicense license itself is not affected — this is a change in cPanel & WHM software, not in licensing. Apply it on every affected server: sudo /scripts/upcp --force. Licenses keep working through updates; nothing needs re-issuing or re-activating.
A remote code execution vulnerability was discovered in the cPanel email filters interface. Attackers with a low-privilege account could execute commands as root.
References
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