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Tool Directory

CVE-2020-11457

MediumPublished

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: Apr 1, 2020
Updated: Aug 4, 2024
Assigning CNA: mitre
Evidence observed: Apr 6, 2020

Primary CVSS

5.4/ 10Medium

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS probability estimate

9.3%

Low · next 30 days

Percentile: 95.2%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

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.

Sources

pfSense 2.4.4-P3 - 'User Manager' Persistent Cross-Site ScriptingExploit
Matthew Aberegg · freebsd · Apr 6, 2020

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