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librenms/librenms vulnerabilities

Vulnerabilities published for librenms/librenms in the last 30 days: 0. Listed in the KEV catalogue: 0.

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Vulnerabilities: 106

  1. CVE-2026-84192

    High · CVSS 7.1EPSS 0.33%Fix available

    LibreNMS before 26.3.1 Stored XSS via SNMP/Syslog Data

    LibreNMS before 26.3.1 contains a stored cross-site scripting vulnerability in legacy PHP templates that output SNMP-sourced and syslog-sourced data without escaping. An attacker who controls a monitored network device can inject arbitrary JavaScript through SNMP interface descriptions or syslog program fields that executes when authenticated users view affected pages.

    • Update to 26.5.0
    Published Updated
  2. CVE-2026-84190

    High · CVSS 8.7EPSS 0.86%Fix available

    LibreNMS before 26.5.0 Remote Code Execution via AboutController

    LibreNMS versions before 26.5.0 contain a remote code execution vulnerability in the AboutController where the snmpget configuration parameter is passed to shell_exec() without proper validation. An authenticated administrator can modify the snmpget configuration to point to a malicious executable file and trigger code execution by accessing the /about endpoint.

    • Update to 26.5.0
    Published Updated
  3. CVE-2026-84189

    Critical · CVSS 9.2EPSS 0.38%Fix available

    LibreNMS before 26.7.0 Stored XSS via Oxidized API

    LibreNMS through 26.4.0 renders JSON fields (name, ip, model, author, commit message) returned by the admin-configurable Oxidized integration URL (oxidized.url) into the device showconfig page without applying htmlspecialchars(). An administrator who points the Oxidized URL at an attacker-controlled server (SSRF) can cause it to return malicious JSON, resulting in stored/persistent cross-site scripting affecting all users who view any device's showconfig tab. Fixed in 26.7.0.

    • Update to 26.7.0
    Published Updated
  4. CVE-2026-84188

    Medium · CVSS 4.8EPSS 0.25%Fix available

    librenms before 26.7.0 Stored XSS via graph_descr settings

    LibreNMS versions <= 26.4.0 contain a stored cross-site scripting vulnerability in the graph_descr.<graphtype> configuration settings, which are echoed verbatim without HTML escaping in includes/html/pages/graphs.inc.php. An administrator can store a malicious HTML payload that executes in the browser of any authenticated user who views the affected graph type. The issue is fixed in version 26.7.0.

    • Update to 26.7.0
    Published Updated
  5. CVE-2026-55182

    High · CVSS 8.6EPSS 1.61%Fix available

    LibreNMS: Remote Code Execution by Signal Alert Transportation Module

    LibreNMS is a network monitoring system. In versions from 21.6.0 up to 26.5.0, the Signal alert transport is vulnerable to command injection because the signal-cli path and the Recipient field of an alert transport entry are insufficiently escaped before being passed to an exec call. An authenticated administrator can craft a transport entry whose Recipient contains shell metacharacters and whose path points to the bundled composer_wrapper.php script, which itself passes attacker-controlled input to further unsafe exec calls. By chaining these calls, the administrator can execute arbitrary operating-system commands on the LibreNMS host. This

    • Update to 26.5.0
    Published Updated
  6. CVE-2026-45694

    Medium · CVSS 5.4EPSS 0.24%Fix available

    LibreNMS: Reflected XSS in the Proxmox app view via unsanitized instance/vmid parameters

    LibreNMS is a network monitoring system. In versions up to and including 26.4.0, the Proxmox application view is vulnerable to reflected cross-site scripting through the user-supplied instance and vmid GET parameters, which are reflected into the page title without adequate encoding. The parameters are placed into the page title with only strip_tags applied, and the title is then written into an inline document.title assignment through string interpolation, so a single quote terminates the JavaScript string and the remaining input runs as script. An attacker who lures an authenticated user into following a crafted link can execute script in t

    • Update to 26.5.0
    Published Updated
  7. CVE-2026-6204

    High · CVSS 8.5EPSS 7.53%Fix available

    CVE-2026-6204

    LibreNMS versions before 26.3.0 are affected by an authenticated remote code execution vulnerability by abusing the Binary Locations config and the Netcommand feature. Successful exploitation requires administrative privileges. Exploitation could result in compromise of the underlying web server.

    • Update to 26.3.0
    Published Updated
  8. CVE-2026-2728

    Medium · CVSS 4.6EPSS 0.22%Fix available

    CVE-2026-2728

    LibreNMS versions before 26.3.0 are affected by an authenticated Cross-site Scripting vulnerability on the showconfig page. Successful exploitation requires administrative privileges. Exploitation could result in XSS attacks being performed against other users with access to the page.

    • Update to 26.3.0
    Published Updated
  9. CVE-2026-26992

    Medium · CVSS 5.1EPSS 0.25%Fix available

    LibreNMS has Stored Cross-Site Scripting via unsanitized /port-groups name

    LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. In versions 26.1.1 and below, the port group name is not sanitized, allowing attackers with admin privileges to perform Stored Cross-Site Scripting (XSS) attacks. When a user adds a port group, an HTTP POST request is sent to the Request-URI "/port-groups". The name of the newly created port group is stored in the value of the name parameter. After the port group is created, the entry is displayed along with relevant buttons such as Edit and Delete. This issue has been fixed in version 26.2.0.

    • Update to 26.2.0
    Published Updated
  10. CVE-2026-26991

    Medium · CVSS 5.1EPSS 0.25%Fix available

    LibreNMS vulnerable to Stored Cross-site Scripting through unsanitized /device-groups name

    LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. In versions 26.1.1 and below, the device group name is not sanitized, allowing attackers with admin privileges to perform Stored Cross-Site Scripting (XSS) attacks. When a user adds a device group, an HTTP POST request is sent to the Request-URI "/device-groups". The name of the newly created device group is stored in the value of the name parameter. After the device group is created, the entry is displayed along with relevant buttons such as Rediscover Devices, Edit, and Delete. This issue has been fixed in version 26.2.0.

    • Update to 26.2.0
    Published Updated
  11. CVE-2026-27016

    Medium · CVSS 5.4EPSS 0.26%Fix available

    LibreNMS has Stored XSS in Custom OID - unit parameter missing strip_tags()

    LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Versions 24.10.0 through 26.1.1 are vulnerable to Stored XSS via the unit parameter in Custom OID. The Custom OID functionality lacks strip_tags() sanitization while other fields (name, oid, datatype) are sanitized. The unsanitized value is stored in the database and rendered without HTML escaping. This issue is fixed in version 26.2.0.

    • Update to 26.2.0
    Published Updated
  12. CVE-2026-26990

    High · CVSS 8.8EPSS 4.47%Fix available

    LibreNMS has Time-Based Blind SQL Injection in address-search.inc.php

    LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Versions 25.12.0 and below have a Time-Based Blind SQL Injection vulnerability in address-search.inc.php via the address parameter. When a crafted subnet prefix is supplied, the prefix value is concatenated directly into an SQL query without proper parameter binding, allowing an attacker to manipulate query logic and infer database information through time-based conditional responses. This vulnerability requires authentication and is exploitable by any authenticated user. This issue has been fixedd in version 26.2.0.

    • Update to 26.2.0
    Published Updated
  13. CVE-2026-26989

    Medium · CVSS 4.3EPSS 0.27%Fix available

    LibreNMS has Stored XSS in Alert Rule

    LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Versions 25.12.0 and below are affected by a Stored Cross-Site Scripting (XSS) vulnerability in the Alert Rules workflow. An attacker with administrative privileges can inject malicious scripts that execute in the browser context of any user who accesses the Alert Rules page. This issue has been fixed in version 26.2.0.

    • Update to 26.2.0
    Published Updated
  14. CVE-2026-26988

    Critical · CVSS 9.3EPSS 8.43%Fix available

    LibreNMS: SQL Injection in ajax_table.php spreads through a covert data stream

    LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Versions 25.12.0 and below contain an SQL Injection vulnerability in the ajax_table.php endpoint. The application fails to properly sanitize or parameterize user input when processing IPv6 address searches. Specifically, the address parameter is split into an address and a prefix, and the prefix portion is directly concatenated into the SQL query string without validation. This allows an attacker to inject arbitrary SQL commands, potentially leading to unauthorized data access or database manipulation. This issue has been fixed in version 26.2.0.

    • Update to 26.2.0
    Published Updated
  15. CVE-2020-36947

    High · CVSS 7.1EPSS 0.47%No fix published

    LibreNMS 1.46 - MAC Accounting Graph Authenticated SQL Injection

    LibreNMS 1.46 contains an authenticated SQL injection vulnerability in the MAC accounting graph endpoint that allows remote attackers to extract database information. Attackers can exploit the vulnerability by manipulating the 'sort' parameter with crafted SQL injection techniques to retrieve sensitive database contents through time-based blind SQL injection.

    Published Updated
  16. CVE-2025-68614

    Medium · CVSS 4.3EPSS 3.88%Fix available

    LibreNMS Alert Rule API Cross-Site Scripting Vulnerability

    LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Prior to version 25.12.0, the Alert Rule API is vulnerable to stored cross-site scripting. Alert rules can be created or updated via LibreNMS API. The alert rule name is not properly sanitized, and can be used to inject HTML code. This issue has been patched in version 25.12.0.

    • Update to 25.12.0
    Published Updated
  17. CVE-2025-65093

    Medium · CVSS 5.5EPSS 3.92%Fix available

    LibreNMS is vulnerable to SQL Injection (Boolean-Based Blind) in hostname parameter in ajax_output.php endpoint

    LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Prior to version 25.11.0, a boolean-based blind SQL injection vulnerability was identified in the LibreNMS application at the /ajax_output.php endpoint. The hostname parameter is interpolated directly into an SQL query without proper sanitization or parameter binding, allowing an attacker to manipulate the query logic and infer data from the database through conditional responses. This issue has been patched in version 25.11.0.

    • Update to 25.11.0
    Published Updated
  18. CVE-2025-65014

    Low · CVSS 3.7EPSS 0.27%Fix available

    LibreNMS has Weak Password Policy

    LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Prior to version 25.11.0, a weak password policy vulnerability was identified in the user management functionality of the LibreNMS application. This vulnerability allows administrators to create accounts with extremely weak and predictable passwords, such as 12345678. This exposes the platform to brute-force and credential stuffing attacks. This issue has been patched in version 25.11.0.

    • Update to 25.11.0
    Published Updated

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