CVE-2025-34178: pfsense XSS — Fix

Description

In pfSense CE /suricata/suricata_app_parsers.php, the value of the policy_name parameter is not sanitized of HTML-related strings/characters before being directly displayed. This can result in stored cross-site scripting. The attacker must be authenticated with at least "WebCfg - Services: suricata package" permissions.

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CVSS v3.1 Score

5.4

MEDIUM

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

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
pfsense	pfsense	< 2.8.0

References

Advisories & Patches

https://github.com/pfsense/FreeBSD-ports/commit/97852ccfd201b24ee542be30af81272485fde0b4

Other References

https://redmine.pfsense.org/issues/16414 https://www.vulncheck.com/advisories/netgate-pf-sense-ce-suricata-package-stored-xss

Frequently Asked Questions

What is CVE-2025-34178? +

In pfSense CE /suricata/suricata_app_parsers.php, the value of the policy_name parameter is not sanitized of HTML-related strings/characters before being directly displayed. This can result in stored cross-site scripting. The attacker must be authenticated with at least "WebCfg - Services: suricata package" permissions. It has a CVSS v3.1 base score of 5.4 (MEDIUM).

How severe is CVE-2025-34178? +

CVE-2025-34178 has a CVSS v3.1 score of 5.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-34178? +

CVE-2025-34178 affects products from pfsense, specifically: pfsense. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-34178? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2025-34178