CVE-2025-54138

Public Exploit
LibreNMS has Authenticated Local File Inclusion in ajax_form.php that Allows RCE

Description

LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring which includes support for a wide range of network hardware and operating systems. LibreNMS versions 25.6.0 and below contain an architectural vulnerability in the ajax_form.php endpoint that permits Remote File Inclusion based on user-controlled POST input. The application directly uses the type parameter to dynamically include .inc.php files from the trusted path includes/html/forms/, without validation or allowlisting. This pattern introduces a latent Remote Code Execution (RCE) vector if an attacker can stage a file in this include path — for example, via symlink, development misconfiguration, or chained vulnerabilities. This is fixed in version 25.7.0.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.01%
Vendor Advisory github.com
Affected: librenms librenms
Published at:
Updated at:

References

Link Tags
https://github.com/librenms/librenms/security/advisories/GHSA-gq96-8w38-hhj2 exploit vendor advisory
https://github.com/librenms/librenms/pull/17990 issue tracking
https://github.com/librenms/librenms/commit/ec89714d929ef0cf2321957ed9198b0f18396c81 patch
https://github.com/librenms/librenms/releases/tag/25.7.0 release notes

Frequently Asked Questions

What is the severity of CVE-2025-54138?
CVE-2025-54138 has been scored as a high severity vulnerability.
How to fix CVE-2025-54138?
To fix CVE-2025-54138, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-54138 being actively exploited in the wild?
It is possible that CVE-2025-54138 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-54138?
CVE-2025-54138 affects librenms librenms.
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