CVE-2021-21403: Kongchuanhujiao Project Kongchuanhujiao

Critical severity, CVSS 9.8. EPSS: 1.4% chance of exploitation in the next 30 days.

In github.com/kongchuanhujiao/server before version 1.3.21 there is an authentication Bypass by Primary Weakness vulnerability. All users are impacted. This is fixed in version 1.3.21.

Affected products

• Kongchuanhujiao Project Kongchuanhujiao: before 1.3.21 (fixed in 1.3.21)

Published 2021-03-26. Last modified 2026-06-17.