Vulnerability CVE-2020-11457
Published: 2020-04-01

Description:
pfSense before 2.4.5 has stored XSS in system_usermanager_addprivs.php in the WebGUI via the descr parameter (aka full name) of a user.

See advisories in our WLB2 database:
Topic
Author
Date
Low
pfSense 2.4.4-P3 User Manager Persistent Cross-Site Scripting
Matthew Aberegg
06.04.2020

Type:

CWE-79

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

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
3.5/10
2.9/10
6.8/10
Exploit range
Attack complexity
Authentication
Remote
Medium
Single time
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None
Affected software
Netgate -> Pfsense 

 References:
http://packetstormsecurity.com/files/157104/pfSense-2.4.4-P3-User-Manager-Cross-Site-Scripting.html
https://github.com/pfsense/pfsense/commit/3c1e53dabe966f27c9097a5a923e77f49ae5fffa
https://www.exploit-db.com/exploits/48300
https://www.netgate.com/assets/downloads/advisories/pfSense-SA-20_06.webgui.asc
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