CVE-2020-11457 json
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.
published 2020-04-01 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-3811
- cvss
- 5.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 9.3%
- EPSS 9.3% chance of exploitation in 30 days, percentile 95%
- public exploits
- 1
- Exploit-DB
Summary
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.
Patch / fix
- netgate pfsense 2.4.5
Timeline
- Published
- First public exploit (EDB-48300)
Exploit prediction
9.28% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- EDB-48300 pfSense 2.4.4-P3 - 'User Manager' Persistent Cross-Site Scripting webapps, 2020-04-06
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/pfsense/pfsense/commit/3c1e53dabe966f27c9097a5a923e77f49ae5fffa
patch, third-party-advisory
-
netgate.com
/assets/downloads/advisories/pfSense-SA-20_06.webgui.asc
patch, vendor-advisory
-
exploit-db.com
/exploits/48300
exploit
- packetstormsecurity.com /files/157104/pfSense-2.4.4-P3-User-Manager-Cross-Site-Scripting.html
Sources
- CVE List CVE-2020-11457
- NVD CVE-2020-11457
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.