What’s Vulnerable › Vulnerabilities

CVE-2020-11457

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 9.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-04-01 · updated 2026-06-17
• Weakness: CWE-79

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.

Affected products

• Netgate pfSense: before 2.4.5 — fixed in 2.4.5

How to fix

Upgrade to a fixed version: Netgate pfSense 2.4.5. Check the vendor advisory for mitigations.

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
• 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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