CVE-2021-42331

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CVSS 3.1

5.4 medium

EPSS

<1%p49

Published

Oct 15, 2021 (Oct 15, 2021)

Modified

Jun 17, 2026

Description

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.

Vendors: xinheinformation
Products: xinhe teaching platform system
Weakness: CWE-285, CWE-862
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (0.6%)

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