CVE-2026-111232: Netgate pfSense CE stored cross-site scripting in firewall rules

CVE-2026-111232 · Severity: medium · CVSS 4.8 · Published 2026-10-15

pfSense is an open-source firewall that manages network traffic and security policies through a web interface. An authenticated attacker with limited firewall rule or port forwarding privileges can inject malicious code into the separator color field that executes in administrators' browsers, allowing them to perform administrative actions without authorization.

Technologies: Netgate Pfsense Ce, Pfsense. Vendors: Netgate, Pfsense.

Quick answers

Is CVE-2026-111232 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-111232 being exploited in the wild.
How severe is CVE-2026-111232?
Medium severity, with a CVSS score of 4.8, published 15 October 2026.
Which products and versions are affected?
Netgate Pfsense Ce 2.3.0 through 2.9.0.
Is there a fix for CVE-2026-111232?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-111232 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-111232?
Check whether you run Netgate Pfsense Ce or Pfsense at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A stored XSS vulnerability exists in the display_separator() function where user-supplied separator color values are rendered unencoded into HTML class attributes. Authenticated users with Firewall: Rules or NAT: Port Forward privileges can inject JavaScript via the separator[] color parameter; the payload executes in any administrator's browser session with their elevated privileges when they view the crafted page.

Affected products

  • Netgate pfSense CE 2.3.0 through 2.9.0

Timeline

  • 2026-10-15: disclosed

References

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