CVE-2016-11020

Description

Kunena before 5.0.4 does not restrict avatar file extensions to gif, jpeg, jpg, and png. This can lead to XSS and remote code execution.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 3.39% Top 15%
Vendor Advisory kunena.org Vendor Advisory kunena.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.kunena.org/bugs/changelog release notes vendor advisory
https://github.com/Kunena/Kunena-Forum/pull/5028 third party advisory patch
https://www.kunena.org/blog/179-kunena-5-0-4-released release notes vendor advisory

Frequently Asked Questions

What is the severity of CVE-2016-11020?
CVE-2016-11020 has been scored as a critical severity vulnerability.
How to fix CVE-2016-11020?
To fix CVE-2016-11020, 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-2016-11020 being actively exploited in the wild?
It is possible that CVE-2016-11020 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~3% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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