CVE-2021-42331: Xinheinformation Xinhe Teaching Platform System

Medium severity, CVSS 5.4. EPSS: 0.6% chance of exploitation in the next 30 days.

The “Study Edit” function of ShinHer StudyOnline System does not perform permission control. After logging in with user’s privilege, remote attackers can access and edit other users’ tutorial schedule by crafting URL parameters.

Affected products

• Xinheinformation Xinhe Teaching Platform System: version v2021 only

Published 2021-10-15. Last modified 2026-06-17.