CVE-2026-109352
LibreNMS before 26.9.0 contains a stored cross-site scripting vulnerability in…
- Risk score
- 48/100
- CVSS
- 6.1 v3.1
- Exploit chance (30 days)
- 0.2%
- Published
- 12 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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 …
- Affected
- See advisory
- Fix
- Upgrade the product to 26.9.0 or later.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 6.1 medium
- On your watchlist: php
References
Original 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.
Last activity 12 Oct 2026. Patch Forecast updates every hour.