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CVE-2021-42331

ShinHer Information Co., LTD. ShinHer StudyOnline System - Improper Authorization-2

MEDIUM
5.4
CVSS Score
Published: October 15, 2021 at 12:10 PM UTC
Updated: June 17, 2026 at 04:09 AM UTC
2 products affected across 2 vendorsXinhe Teaching Platform SystemXinhe Teaching Platform System

Using ShinHer StudyOnline System by ShinHer Information Co., LTD.?

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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.6%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISCThird Party Advisory
Source: [email protected]
https://www.twcert.org.tw/tw/cp-132-5201-dc534-1.html

CVSS

5.4MEDIUMtwcert
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-285CWE-862

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