CVE-2021-42330 — HIGH (8.8)

Vulnerability Description

The “Teacher Edit” function of ShinHer StudyOnline System does not perform authority control. After logging in with user’s privilege, remote attackers can access and edit other users’ credential and personal information by crafting URL parameters.

CVSS Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Xinheinformation	Xinhe Teaching Platform System	v2021

Related Weaknesses (CWE)

CWE-285

References

https://www.twcert.org.tw/tw/cp-132-5200-3d3ca-1.htmlThird Party Advisory
https://www.twcert.org.tw/tw/cp-132-5200-3d3ca-1.htmlThird Party Advisory

FAQ

What is CVE-2021-42330?

CVE-2021-42330 is a vulnerability with a CVSS score of 8.8 (HIGH). The “Teacher Edit” function of ShinHer StudyOnline System does not perform authority control. After logging in with user’s privilege, remote attackers can access and edit other users’ credential and p...

How severe is CVE-2021-42330?

CVE-2021-42330 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-42330?

Check the references section above for vendor advisories and patch information. Affected products include: Xinheinformation Xinhe Teaching Platform System.