CVE-2020-11457
pfSense before 2.4.5 has stored XSS in system_usermanager_addprivs.php in the WebGUI via the...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2020-11457- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 3.5 Low
AV:N/AC:M/Au:S/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2020-11457- Updated
- 2026-11-02
EUVDEUVD-2020-3811 No score
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.
- Record
EUVD-2020-3811- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-wjx8-w8hq-76c5 No score
pfSense before 2.4.5 has stored XSS in system_usermanager_addprivs.php in the WebGUI via the...
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.
- Record
GHSA-wjx8-w8hq-76c5- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2020-11457- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | pfSense 2.4.4-P3 - 'User Manager' Persistent Cross-Site Scripting | 2020-04-06 |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-11457 is a medium vulnerability (CVSS 5.4) in Netgate Pfsense, published April 1, 2020. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 9.28%, the 95th percentile. No source names a fixed version.
References
netgate.com/assets/downloads/advisories/pfSense-SA-20_06.webgui.asc
github.com/pfsense/pfsense/commit/3c1e53dabe966f27c9097a5a923e77f49ae5fffa
packetstormsecurity.com/files/157104/pfSense-2.4.4-P3-User-Manager-Cross-Site-Scripting.html
exploit-db.com/exploits/48300
nvd.nist.gov/vuln/detail/CVE-2020-11457