CVE-2026-111233
Medium
Description
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.
SeverityMedium
CVSS4.7
Exploit probability—
ProductPfsense
PublishedOct 15, 2026
First seenOct 15, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| pfsense pfsense | 2.7.1 ≤ v ≤ 2.9.0 | — |
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