Vulnerability Details : 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.
Vulnerability category: BypassGain privilege
Products affected by CVE-2021-42331
- cpe:2.3:a:xinheinformation:xinhe_teaching_platform_system:v2021:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-42331
0.08%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 33 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-42331
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.5
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:P/A:N |
8.0
|
4.9
|
NIST | |
|
5.4
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |
2.8
|
2.5
|
TWCERT/CC |
CWE ids for CVE-2021-42331
-
The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.Assigned by: twcert@cert.org.tw (Secondary)
-
The product does not perform an authorization check when an actor attempts to access a resource or perform an action.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-42331
-
https://www.twcert.org.tw/tw/cp-132-5201-dc534-1.html
TWCERT/CC台灣電腦網路危機處理暨協調中心-欣河資訊 欣河教學平台系統 - Improper Authorization-2Third Party Advisory
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