CVE-2021-42330
CVE-2021-42330 is a high-severity vulnerability in Xinheinformation Xinhe Teaching Platform System with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-285.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- CVSS v2: 5.5
- EPSS exploit prediction: 1% (57th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-285
- Affected product: Xinheinformation Xinhe Teaching Platform System
- Published:
- Last modified:
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.
Frequently asked questions
- What is 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.
- How severe is CVE-2021-42330?
- CVE-2021-42330 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-42330 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-42330?
- CVE-2021-42330 affects Xinheinformation Xinhe Teaching Platform System. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-42330?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2021-42330 published?
- CVE-2021-42330 was published on 2021-10-15 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:xinheinformation:xinhe_teaching_platform_system:v2021:*:*:*:*:*:*:*
More vulnerabilities in Xinheinformation Xinhe Teaching Platform System
- CVE-2021-42331 — Medium (CVSS 5.4): The “Study Edit” function of ShinHer StudyOnline System does not perform permission control. After logging in with…
- CVE-2021-42329 — Medium (CVSS 5.4): The “List_Add” function of message board of ShinHer StudyOnline System does not filter special characters in the…
- CVE-2021-42332 — Medium (CVSS 4.3): The “List View” function of ShinHer StudyOnline System is not under authority control. After logging in with…
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