CVE-2020-21054

Description

Cross Site Scripting (XSS) vulnerability in FusionPBX 4.5.7 allows remote malicious users to inject arbitrary web script or HTML via an unsanitized "f" variable in app\vars\vars_textarea.php.

Category

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

References

Link Tags
https://resp3ctblog.wordpress.com/2019/10/28/fusionpbx-xss-21/ third party advisory
https://github.com/fusionpbx/fusionpbx/commit/2489004c7b7e0b14e21cd86cedaab87fed209415 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2020-21054?
CVE-2020-21054 has been scored as a medium severity vulnerability.
How to fix CVE-2020-21054?
To fix CVE-2020-21054, 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-2020-21054 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-21054 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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