Signal is active with 2 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. In versions 26.1.1 and below, the port group name is not sanitized, allowing attackers with admin privileges to perform Stored Cross-Site Scripting (XSS) attacks. When a user adds a port group, an HTTP POST request is sent to the Request-URI "/port-groups". The name of the newly created port group is stored in the value of the name parameter. After the port group is created, the entry is displayed along with relevant buttons such as Edit and Delete. This issue has been fixed in version 26.2.0.
Priority
LOW
Exploitation
NONE
PoC
YES
Patch
AVAILABLE
Momentum
NONE
If you run products in this scope, you should treat this CVE as relevant to your environment.
CVE-2026-26992 Stored XSS Vulnerability in LibreNMS Port Group Name Handling Below 26.2.0 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-26992
Post summary
A stored XSS vulnerability has been disclosed for LibreNMS versions prior to 26.2.0.
CVE-2026-26992 LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. In versions 26.1.1 and below, the port group name is not sanitized, allowing attackers w… https://www.cve.org/CVERecord?id=CVE-2026-26992
Post summary
CVE-2026-26992 details a sanitization flaw in LibreNMS that allows unsafe port group names, potentially leading to exploitation.
1 of 1 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | librenms | librenms | - | - | - |