CVE-2026-111229
CVE-2026-111229 · Netgate pfSense CE 2.7.0 through 2.9.0 Command Injection via Captive Portal HA Sync
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 8.6 · High · EPSS 6.4%
- Published
- Updated
Affected products and versions
pfsense ce
- Versions
- ≥ 2.7.0, ≤ 2.9.0: Affected (semver)
No fix published
Original sources
- https://github.com/abraxas/pfsense-cp-ha-pfctl
- https://abraxaslabs.tech/research/pfsense-ce-leftovers
- https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/captiveportal.inc#L2958-L2966
- https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/usr/local/www/services_captiveportal_hasync.php#L106-L140
- https://www.vulncheck.com/advisories/netgate-pfsense-ce-2.7.0-through-2.9.0-command-injection-via-captive-portal-ha-sync
- https://nvd.nist.gov/vuln/detail/CVE-2026-111229