GHSA-pm8j-3v64-92cq LibreNMS Display Name Stored Cross-site Scripting vulnerability

• Packagist librenms/librenms: >= 24.9.0, < 24.11.0 → fixed in 24.11.0

Description: XSS on the parameters (Replace $DEVICE_ID with your specific $DEVICE_ID value):`/device/$DEVICE_ID/edit` -> param: display of Librenms versions 24.9.0, 24.10.0, and 24.10.1 (https://github.com/librenms/librenms) allows remote attackers to inject malicious scripts. When a user views or interacts with the page displaying the data, the malicious script executes immediately, leading to potential unauthorized actions or data exposure. Proof of Concept: 1. Add a new device through the LibreNMS interface. 2. Edit the newly created device by going to the "Device Settings" section. 3. In the "Display Name" field, enter the following payload: `">alert(1)`. 4. Save the changes. 5. The XSS payload triggers when accessing the "/apps" path (if an application was previously added). Additional PoC: 1. In the "Display Name" field, enter the following payload: `">`. 2. The XSS vulnerability is triggered when accessing the "/ports" path, and the payload executes when hovering over the modified value in the "Port" field. • on `/device/$DEVICE_ID/ports/arp` path: • on `/device/$DEVICE_ID/logs` path: • on `/search/search=arp/` path: Impact: Execution of Malicious Code