CVE-2026-30403: Wgstart Wgcloud

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

There is an arbitrary file read vulnerability in the test connection function of backend database management in wgcloud v3.6.3 and before, which can be used to read any file on the victim's server.

Affected products

• Wgstart Wgcloud: up to and including 3.6.3

Published 2026-03-19. Last modified 2026-06-17.