What is CVE-2022-29273?

CVE-2022-29273 is a medium-severity vulnerability in Netgate Pfsense, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-02-22.

How severe is CVE-2022-29273?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Netgate Pfsense

CVE-2022-29273

pfSense CE through 2.6.0 and pfSense Plus before 22.05 allow XSS in the WebGUI via URL Table Alias URL parameters.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-02-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.596 (99.1th percentile), scored 2026-10-29.

High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.596 · newest: 0.596 · change: 0.000

Affected products

Netgate Pfsense

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

docs.netgate.com/pfsense/en/latest/releases/index.html (Release Notes)
redmine.pfsense.org/issues/13060 (Patch)
docs.netgate.com/downloads/pfSense-SA-22_05.webgui.asc

Frequently asked questions

What is CVE-2022-29273?: CVE-2022-29273 is a medium-severity vulnerability in Netgate Pfsense, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-02-22.
How severe is CVE-2022-29273?: Medium severity. CVSS v3 base score is 6.1 out of 10.