What is CVE-2022-42247?

CVE-2022-42247 is a medium-severity vulnerability in Pfsense, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-10-03.

How severe is CVE-2022-42247?

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

Is CVE-2022-42247 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Pfsense

CVE-2022-42247

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.025 (83.2th 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 — versions 2.5.2
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

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

Frequently asked questions

What is CVE-2022-42247?: CVE-2022-42247 is a medium-severity vulnerability in Pfsense, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-10-03.
How severe is CVE-2022-42247?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2022-42247 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.