CVE-2020-21054 Information

Description

Cross Site Scripting (XSS) vulnerability in FusionPBX 4.5.7 allows remote malicious users to inject arbitrary web script or HTML via an unsanitized \ variable in app\vars\vars_textarea.php.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Reference

https://github.com/fusionpbx/fusionpbx/commit/2489004c7b7e0b14e21cd86cedaab87fed209415 https://resp3ctblog.wordpress.com/2019/10/28/fusionpbx-xss-21/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

CHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

6.1