WHMCS 9.0.4 and WHMCS 8.13.3 are now available as maintenance releases for the 9.0 and 8.13 series.

These releases provide important maintenance updates to support the continued security and reliability of the platform.

This release includes security-related updates.

We are limiting the level of technical detail shared about these changes. At this time, no further information will be provided. CVE-2026-29204 has been assigned.

We recommend that all users update to the latest available version for their release series.

WHMCS Cloud customers have already received these updates automatically as part of our managed service and platform maintenance commitments.

No action is required on your part. Your WHMCS Cloud instance has been updated with the applicable maintenance release, allowing you to continue using WHMCS without needing to download files, run the updater, or manage the update process manually.

This is part of the value of WHMCS Cloud. Updates are handled for you, securely and efficiently, so your installation remains current, maintained, and protected.

You can update your installation using the Automatic Updater within the WHMCS admin area: Utilities > Update WHMCS.

For those who prefer to perform updates manually, full release packages and incremental update files are also available via the WHMCS download page.

As always, please ensure you take a full backup of your system before performing any update.

Maintenance releases are an important part of keeping WHMCS installations secure, reliable, and supported.

Thank you for your continued support and for being part of the WHMCS community.