CVE-2025-54138

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.

Reserved 2025-07-16 | Published 2025-07-22 | Updated 2025-07-22 | Assigner GitHub_M

Problem types

CWE-98: Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion')

Product status

< 25.7.0
affected

References

github.com/...brenms/security/advisories/GHSA-gq96-8w38-hhj2

github.com/librenms/librenms/pull/17990

github.com/...ommit/ec89714d929ef0cf2321957ed9198b0f18396c81

github.com/librenms/librenms/releases/tag/25.7.0

cve.org (CVE-2025-54138)

nvd.nist.gov (CVE-2025-54138)

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