---
id: CVE-2026-111229
title: >-
  pfSense CE 2.7.0 through 2.9.0 contains a command injection vulnerability in
  services_captiveportal_hasync.php that allows users with only the Captive
  Portal HA privilege to execute commands as root
summary: >-
  pfSense CE 2.7.0 through 2.9.0 contains a command injection vulnerability in
  services_captiveportal_hasync.php that allows users with only the Captive
  Portal HA privilege to execute commands as root. Attackers can set
  backwardsyncip to a…
severity: high
cvss: 7.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-78
vendor: Netgate
product: pfSense CE
affected:
  - pfsense_ce >= 2.7.0 <= 2.9.0
published: '2026-10-15'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T19:17:35.813'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-111229'
references:
  - url: 'https://abraxaslabs.tech/research/pfsense-ce-leftovers'
    label: disclosure@vulncheck.com
  - url: 'https://github.com/abraxas/pfsense-cp-ha-pfctl'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/captiveportal.inc#L2958-L2966
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/usr/local/www/services_captiveportal_hasync.php#L106-L140
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/netgate-pfsense-ce-2.7.0-through-2.9.0-command-injection-via-captive-portal-ha-sync
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-15T19:25:46.430Z'
---

## Overview

pfSense CE 2.7.0 through 2.9.0 contains a command injection vulnerability in services_captiveportal_hasync.php that allows users with only the Captive Portal HA privilege to execute commands as root. Attackers can set backwardsyncip to a malicious XMLRPC server returning connected_users with shell metacharacters in ip or mac fields, which captiveportal_load_pfctl passes unescaped to a pfctl shell command.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.