Vulnerability CVE-2020-21055
Published: 2021-05-20

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.

Type:

CWE-22

 (Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'))

CVSS2 => (AV:N/AC:L/Au:S/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4/10
2.9/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None
Affected software
Fusionpbx -> Fusionpbx 

 References:
https://resp3ctblog.wordpress.com/2019/10/28/fusionpbx-path-traversal-6/
https://github.com/fusionpbx/fusionpbx/commit/1a88ca61a744914d3336cc15a40fb3edbcde9085
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