What is CVE-2021-42330?

CVE-2021-42330 is a high-severity vulnerability in Shinher Information Co., Ltd. Studyonline System, classified under Improper Authorization. CVSS score: 8.8/10. Published 2021-10-15.

How severe is CVE-2021-42330?

High severity. CVSS v3 base score is 8.8 out of 10.

Auth bypass in Shinher Information Co., Ltd. Studyonline System

CVE-2021-42330

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.

EPSS: 0.009 (57.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Shinher Information Co., Ltd. Studyonline System — versions unspecified
Xinheinformation Xinhe_teaching_platform_system — versions v2021

Weakness classification (CWE)

CWE-285 — Improper Authorization

References

twcert@cert.org.tw (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-42330?: CVE-2021-42330 is a high-severity vulnerability in Shinher Information Co., Ltd. Studyonline System, classified under Improper Authorization. CVSS score: 8.8/10. Published 2021-10-15.
How severe is CVE-2021-42330?: High severity. CVSS v3 base score is 8.8 out of 10.