Medium severity6.1NVD Advisory· Published May 20, 2021· Updated Jun 17, 2026
CVE-2020-21053
CVE-2020-21053
Description
Cross Site Scriptiong (XSS) vulnerability exists in FusionPBX 4.5.7 allows remote malicious users to inject arbitrary web script or HTML via an unsanitized "query_string" variable in app\devices\device_imports.php.
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Affected products
2- FusionPBX/FusionPBXdescription
Patches
Vulnerability mechanics
References
2- github.com/fusionpbx/fusionpbx/commit/2ce613f1e9fe8ffab7a4cb9d1384444622285335nvdPatchThird Party Advisory
- resp3ctblog.wordpress.com/2019/10/28/fusionpbx-xss-22/nvdThird Party Advisory
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