CVE-2024-32479 — LibreNMS is an open-source, PHP/MySQL/SNMP-based network monitoring system

LibreNMS is an open-source, PHP/MySQL/SNMP-based network monitoring system. Prior to version 24.4.0, there is improper sanitization on the `Service` template name, which can lead to stored Cross-site Scripting. Version 24.4.0 fixes this vulnerability.

01What is this vulnerability?

LibreNMS is an open-source, PHP/MySQL/SNMP-based network monitoring system. Prior to version 24.4.0, there is improper sanitization on the `Service` template name, which can lead to stored Cross-site Scripting. Version 24.4.0 fixes this vulnerability.

02Affected products

Vendor	Product	Versions
librenms	librenms	< 24.4.0

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2024-04-22T22:07:08.958Z
• Last modified: 2024-08-02T02:13:38.943Z

09References

• github.com — https://github.com/librenms/librenms/security/advisories/GHSA-72m9-7c8x-pmmw
• github.com — https://github.com/librenms/librenms/commit/19344f0584d4d6d4526fdf331adc60530e3f…
• github.com — https://github.com/librenms/librenms/blob/a61c11db7e8ef6a437ab55741658be2be7d14d…