XSS in Pfsense

CVE-2022-23993

/usr/local/www/pkg.php in pfSense CE before 2.6.0 and pfSense Plus before 22.01 uses $_REQUEST['pkg_filter'] in a PHP echo call, causing XSS.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.015 (72.1th percentile) — read the EPSS interpretation.

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.

Affected products

Pfsense
Pfsense Pfsense_plus
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2022-23993?: CVE-2022-23993 is a medium-severity vulnerability in Pfsense, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-01-26.
How severe is CVE-2022-23993?: Medium severity. CVSS v3 base score is 6.1 out of 10.