CVE-2024-32479 is a high-severity (CVSS 7.1) Cross-site Scripting (XSS) vulnerability in librenms/librenms. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for librenms/librenms — see the affected versions and patch details below.
LibreNMS's Improper Sanitization on Service template name leads to Stored XSS
Exploitation Status
No confirmed exploitation observed yet
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2024-32479.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
librenms/librenmsReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.
Description
Summary
There is improper sanitization on Service template name which is reflecting in delete button onclick event. This value can be modified and crafted as any other javascript code.
Vulnerable Code
Above is vulnerable code line which needs to be properly sanitized
PoC
- Go to /services/templates
- Enter name as
testing', '14', 'http://172.105.62.194:8000/services/templates/14');alert(1);// - Submit it and try to delete it, you will see popup
If you inspect element on delete button, you will notice this:- <img width="748" alt="Screenshot 2023-11-23 at 9 30 24 PM" src="https://user-images.githubusercontent.com/31764504/285260018-7672a93d-e29b-4444-8057-e6ffcb8dabfc.png">
Impact
Cross site scripting can lead to cookie stealing or an attacker can execute any other feature using this feature.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | librenms/librenms | all versions | 24.4.0composer require librenms/librenms:^24.4.0 |
Affected Products
librenmslibrenmsResearch use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for librenms/librenms, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update librenms/librenms to 24.4.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2024-32479 is resolved across your whole dependency graph.
Workarounds
Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.
Frequently Asked Questions
Is CVE-2024-32479 in your dependencies?
Find it across Packagist, including transitive dependencies.