CVE-2019-16977

Description

In FusionPBX up to 4.5.7, the file app\extensions\extension_imports.php uses an unsanitized "query_string" variable coming from the URL, which is reflected in HTML, leading to XSS.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.33%
Third-Party Advisory wordpress.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/fusionpbx/fusionpbx/commit/fc8e4e2d278ce6bffff21b04248d469a59eb8cd4 patch
https://resp3ctblog.wordpress.com/2019/10/19/fusionpbx-xss-10/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2019-16977?
CVE-2019-16977 has been scored as a medium severity vulnerability.
How to fix CVE-2019-16977?
To fix CVE-2019-16977, 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-2019-16977 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-16977 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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