What’s Vulnerable › Vulnerabilities

CVE-2020-21055

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-05-20 · updated 2026-06-17
• Weakness: CWE-22

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.

Affected products

• fusionpbx: 4.5.7

References

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

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