CVE-2021-42331: medium-severity vulnerability in ShinHer StudyOnline System
ShinHer Information Co., LTD. ShinHer StudyOnline System - Improper Authorization-2
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.4epss 0.6%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Affected products
ShinHer Information Co., LTD. · ShinHer StudyOnline SystemRelated CVEs — ShinHer StudyOnline System
In the same product, most dangerous first.
CVE-2021-42330HIGHShinHer Information Co., LTD. ShinHer StudyOnline System - Improper Authorization-1EPSS 1.0%CVE-2021-42332MEDIUMShinHer Information Co., LTD. ShinHer StudyOnline System - Improper Authorization-3EPSS 0.8%CVE-2021-42329MEDIUMShinHer Information Co., LTD. ShinHer StudyOnline System - Stored XSSEPSS 0.6%