CVE-2021-42839

Grand Vice info Co. webopac7 - Arbitrary File Upload

Description

Grand Vice info Co. webopac7 file upload function fails to filter special characters. While logging in with general user’s permission, remote attackers can upload malicious script and execute arbitrary code to control the system or interrupt services.

Remediation

Solution:

  • Contact tech support from Grand Vice info Co.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.63% Top 20%
Third-Party Advisory org.tw
Affected: Grand Vice info Co. webopac7
Published at:
Updated at:

References

Link Tags
https://www.twcert.org.tw/tw/cp-132-5288-9d546-1.html third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-42839?
CVE-2021-42839 has been scored as a high severity vulnerability.
How to fix CVE-2021-42839?
To fix CVE-2021-42839: Contact tech support from Grand Vice info Co.
Is CVE-2021-42839 being actively exploited in the wild?
It is possible that CVE-2021-42839 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-42839?
CVE-2021-42839 affects Grand Vice info Co. webopac7.
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