Vulnerability CVE-2020-21053
Published: 2021-05-20

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.

Type:

CWE-79

 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'))

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None
Affected software
Fusionpbx -> Fusionpbx 

 References:
https://github.com/fusionpbx/fusionpbx/commit/2ce613f1e9fe8ffab7a4cb9d1384444622285335
https://resp3ctblog.wordpress.com/2019/10/28/fusionpbx-xss-22/
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