CVE-2026-111233
mediumNetgate pfSense CE 2.7.1 through 2.9.0 contains a reflected cross-site scripting vulnerability in firewall_rules.php that allows remote attackers to inject scr…
Vendor / product: Pfsense — pfsense
Netgate pfSense CE 2.7.1 through 2.9.0 contains a reflected cross-site scripting vulnerability in firewall_rules.php that allows remote attackers to inject script via the unencoded if parameter. When the non-default Require Firewall Interface option is enabled, attackers can lure users with firewall rules privileges into opening a crafted GET link to execute script in the WebGUI with their privileges.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Affected products
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://abraxaslabs.tech/research/pfsense-ce-leftovers disclosure@vulncheck.com
- https://github.com/abraxas/pfsense-rules-if-xss disclosure@vulncheck.com
- https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/usr/l... disclosure@vulncheck.com
- https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/usr/l... disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/netgate-pfsense-ce-2.7.1-through-2.9.0-reflected-xss-... disclosure@vulncheck.com