CVE-2020-21054: XSS
First published: Thu May 20 2021(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Fusionpbx Fusionpbx | =4.5.7 |
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Reference Links
Frequently Asked Questions
What is CVE-2020-21054?
CVE-2020-21054 is a Cross Site Scripting (XSS) vulnerability in FusionPBX 4.5.7.
How does CVE-2020-21054 affect FusionPBX?
CVE-2020-21054 allows remote malicious users to inject arbitrary web script or HTML via an unsanitized "f" variable in app\vars\vars_textarea.php.
What is the severity of CVE-2020-21054?
The severity of CVE-2020-21054 is medium with a CVSS score of 6.1.
How can I fix CVE-2020-21054?
To fix CVE-2020-21054, update FusionPBX to version 4.5.8 or later.
Where can I find more information about CVE-2020-21054?
You can find more information about CVE-2020-21054 in the references: [GitHub Commit](https://github.com/fusionpbx/fusionpbx/commit/2489004c7b7e0b14e21cd86cedaab87fed209415) and [Resp3ctBlog](https://resp3ctblog.wordpress.com/2019/10/28/fusionpbx-xss-21/).
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