CVE-2021-27340

Description

OpenSIS Community Edition version <= 7.6 is affected by a reflected XSS vulnerability in EmailCheck.php via the "opt" parameter.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.38%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/OS4ED/openSIS-Classic/issues/158 issue tracking third party advisory
https://github.com/OS4ED/openSIS-Classic/releases third party advisory release notes
https://github.com/OS4ED/openSIS-Classic/commit/f78407d5291c686c3f416073dcb9143f3a3d5489#diff-24b751f2072f058259d033016938101f9fa29884ebcc09ce7eb88def3421e5ba third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-27340?
CVE-2021-27340 has been scored as a medium severity vulnerability.
How to fix CVE-2021-27340?
To fix CVE-2021-27340, 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-2021-27340 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-27340 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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