CVE-2024-47526 LibreNMS has a Self-XSS ('Cross-site Scripting') in librenms/includes/html/modal/alert_template.inc.php
Attackers can inject JavaScript into alert template names in LibreNMS, executing code in the victim's browser context.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2024-47526?
CVE-2024-47526 is a low-severity cross-site scripting vulnerability in Librenms Librenms, published on 1 Oct 2024. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
LibreNMS is an open-source, PHP/MySQL/SNMP-based network monitoring system. A Self Cross-Site Scripting (Self-XSS) vulnerability in the "Alert Templates" feature allows users to inject arbitrary JavaScript into the alert template's name. This script executes immediately upon submission but does not persist after a page refresh.
Weakness: CWE-79
Which versions are affected by CVE-2024-47526?
2 open source packages ship an affected version, including librenms/librenms. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
librenms/librenms Packagist | All versions | 24.9.0 |
librenms/librenms Packagist | All versions | 24.9.0 |
Products include Librenms Librenms.
How do I fix CVE-2024-47526?
Upgrade librenms/librenms to 24.9.0 or later.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2024-47526 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-47526 exists.
Other vulnerabilities in Librenms Librenms
Sources
Also known as GHSA-gcgp-q2jq-fw52.