What is CVE-2021-42331?

CVE-2021-42331 is a medium-severity vulnerability in Shinher Information Co., Ltd. Studyonline System, classified under Improper Authorization. CVSS score: 5.4/10. Published 2021-10-15.

How severe is CVE-2021-42331?

Medium severity. CVSS v3 base score is 5.4 out of 10.

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

CVE-2021-42331

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.

EPSS: 0.006 (46.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: 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. Studyonline System — versions unspecified
Xinheinformation Xinhe_teaching_platform_system — versions v2021

Weakness classification (CWE)

References

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

Frequently asked questions

What is CVE-2021-42331?: CVE-2021-42331 is a medium-severity vulnerability in Shinher Information Co., Ltd. Studyonline System, classified under Improper Authorization. CVSS score: 5.4/10. Published 2021-10-15.
How severe is CVE-2021-42331?: Medium severity. CVSS v3 base score is 5.4 out of 10.