CVE-2021-40542

Public Exploit

Description

Opensis-Classic Version 8.0 is affected by cross-site scripting (XSS). An unauthenticated user can inject and execute JavaScript code through the link_url parameter in Ajax_url_encode.php.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 12.59% Top 10%
Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/OS4ED/openSIS-Classic/issues/189 issue tracking exploit third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-40542?
CVE-2021-40542 has been scored as a medium severity vulnerability.
How to fix CVE-2021-40542?
To fix CVE-2021-40542, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-40542 being actively exploited in the wild?
It is possible that CVE-2021-40542 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~13% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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