Medium severity6.5NVD Advisory· Published May 20, 2021· Updated Jun 17, 2026
CVE-2020-21055
CVE-2020-21055
Description
A Directory Traversal vulnerability exists in FusionPBX 4.5.7 allows malicoius users to rename any file of the system.via the (1) folder, (2) filename, and (3) newfilename variables in app\edit\filerename.php.
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Affected products
2- FusionPBX/FusionPBXdescription
Patches
Vulnerability mechanics
References
2- github.com/fusionpbx/fusionpbx/commit/1a88ca61a744914d3336cc15a40fb3edbcde9085nvdPatchThird Party Advisory
- resp3ctblog.wordpress.com/2019/10/28/fusionpbx-path-traversal-6/nvdThird Party Advisory
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