CVE-2022-42247

Name: CVE-2022-42247
Creator: NVD / NIST
Published: 2022-10-03T16:15:14.727+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 2.45%

Last modified Jun 17, 2026

CVE-2022-42247 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. pfSense v2.5.2 was discovered to contain a cross-site scripting (XSS) vulnerability in the browser.php component. This vulnerability allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into a file name.. EPSS estimates a 2.45% chance of exploitation in the next 30 days.

Description

pfSense v2.5.2 was discovered to contain a cross-site scripting (XSS) vulnerability in the browser.php component. This vulnerability allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into a file name.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

2.45%

82.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Pfsense	Pfsense	2.5.2

References

https://gist.github.com/enferas/b4ca7a4fb52e1b5e698f87e4d655a70aExploit, Patch, Third Party Advisory
https://github.com/pfsense/pfsense/commit/73ca6743954ac9f35ca293e3f2af63eac20cf32ePatch, Third Party Advisory
https://gist.github.com/enferas/b4ca7a4fb52e1b5e698f87e4d655a70aExploit, Patch, Third Party Advisory
https://github.com/pfsense/pfsense/commit/73ca6743954ac9f35ca293e3f2af63eac20cf32ePatch, Third Party Advisory

Timeline

Published: Oct 3, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-42247?

How severe is CVE-2022-42247?

CVE-2022-42247 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 2.45% probability of exploitation in the next 30 days.

How do I fix CVE-2022-42247?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-42247?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST