At Singapore time 1.23am, we have received notification from WHMCS that they have released new updates to address security concerns within the WHMCS product. The security changes in these releases address 9 issues, all of which were reported via the Security Bounty Program, or discovered internally by the WHMCS Development Team. The issues addressed are rated as having Trivial to Important security impacts.
As security is our top priority, we have acted promptly and patched our copy billing control panel successfully at 1.30am based on our vendor recommendation.