Medium severity · published Apr 1, 2020
CVE-2020-11457
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
5.4
CVSS
9.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)9.3% · higher than 95% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PF
Pfsense · Netgate
before 2.4.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-11457
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-11457
packetstormsecurity.com
http://packetstormsecurity.com/files/157104/pfSense-2.4.4-P3-User-Manager-Cross-Site-Scripting.html
Patch
https://github.com/pfsense/pfsense/commit/3c1e53dabe966f27c9097a5a923e77f49ae5fffa
www.exploit-db.com
https://www.exploit-db.com/exploits/48300
Patch
https://www.netgate.com/assets/downloads/advisories/pfSense-SA-20_06.webgui.asc
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