Dear Resellers, WHMCS has released an important security update for CVE-2026-29204. If you are using your own self-managed WHMCS installation, please update your WHMCS immediately to a patched version. Affected versions include: WHMCS 9.x builds before 9.0.4 WHMCS 8.x builds before 8.13.3 WHMCS 7.x builds after 7.4.0 Patched ...