CVE-2025-54138

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

State
Published
Severity
7.5 High
Published
Jul 22, 2025
Updated
Jul 23, 2025
Reserved
Jul 16, 2025

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.17.5 HighCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HGitHub_M

Weaknesses

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

Affected Products

ProductVersions
librenmslibrenms
  • < 25.7.0Affected

References

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