Description
LibreNMS before 26.9.0 contains a stored cross-site scripting vulnerability in includes/html/pages/device/wireless.inc.php, which echoes wireless sensor sensor_descr values, populated from SNMP DisplayString fields during discovery, into HTML without escaping. Attackers controlling a monitored device's SNMP agent can set values such as AI-AP-MIB::aiSSID to malicious JavaScript that executes when authenticated users view the device's Wireless tab, enabling session hijacking.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| librenms | librenms | < 26.9.0 | 26.9.0 |
References
- GitHub Security Advisory (GHSA-ffjc-4fr5-47c6) vendor-advisory
- VulnCheck Advisory: LibreNMS before 26.9.0 Stored XSS via wireless sensor description third-party-advisory