CVE-2020-21054

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2020-21054
Cross Site Scripting (XSS) vulnerability in FusionPBX 4.5.7 allows remote malicious users to inject arbitrary web script or HTML via an unsanitized "f" variable in app\vars\vars_textarea.php.

6.1 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

4.3 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:M/Au:N/C:N/I:P/A:N

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References
Link Resource
https://github.com/fusionpbx/fusionpbx/commit/2489004c7b7e0b14e21cd86cedaab87fed209415 Patch Third Party Advisory
https://resp3ctblog.wordpress.com/2019/10/28/fusionpbx-xss-21/ Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:fusionpbx:fusionpbx:4.5.7:*:*:*:*:*:*:*
History

25 May 2021, 20:02

Type Values Removed Values Added
CWE CWE-79
References (MISC) https://github.com/fusionpbx/fusionpbx/commit/2489004c7b7e0b14e21cd86cedaab87fed209415 - (MISC) https://github.com/fusionpbx/fusionpbx/commit/2489004c7b7e0b14e21cd86cedaab87fed209415 - Patch, Third Party Advisory
References (MISC) https://resp3ctblog.wordpress.com/2019/10/28/fusionpbx-xss-21/ - (MISC) https://resp3ctblog.wordpress.com/2019/10/28/fusionpbx-xss-21/ - Third Party Advisory
CVSS v2 : unknown
v3 : unknown 		v2 : 4.3
v3 : 6.1
CPE cpe:2.3:a:fusionpbx:fusionpbx:4.5.7:*:*:*:*:*:*:*

20 May 2021, 16:15

Type Values Removed Values Added
New CVE
Information

Published : 2021-05-20 16:15

Updated : 2024-02-04 21:47

NVD link : CVE-2020-21054

Mitre link : CVE-2020-21054

CVE.ORG link : CVE-2020-21054

JSON object : View

Products Affected

fusionpbx

  • fusionpbx
CWE
CWE-79

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