LibreNMS vulnerable to Reflected Cross-Site Scripting (XSS) in endpoint `/maps/nodeimage` parameter `Image Name`

LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Prior to version 25.11.0, a reflected cross-site scripting (XSS) vulnerability was identified in the LibreNMS application at the /maps/nodeimage endpoint. The Image Name parameter is reflected in the HTTP response without proper output encoding or sanitization, allowing an attacker to craft a URL that, when visited by a victim, causes arbitrary JavaScript execution in the victim’s browser. This issue has been patched in version 25.11.0.

LibreNMS alert-rules Cross-Site Scripting Vulnerability

LibreNMS is a community-based GPL-licensed network monitoring system. The alert rule name in the Alerts > Alert Rules page is not properly sanitized, and can be used to inject HTML code. This vulnerability is fixed in 25.10.0.

Stored XSS in Alert Transport name field in LibreNMS

LibreNMS is a community-based GPL-licensed network monitoring system. LibreNMS <= 25.8.0 contains a Stored Cross-Site Scripting (XSS) vulnerability in the Alert Transports management functionality. When an administrator creates a new Alert Transport, the value of the Transport name field is stored and later rendered in the Transports column of the Alert Rules page without proper input validation or output encoding. This leads to arbitrary JavaScript execution in the admin’s browser. This vulnerability is fixed in 25.10.0.

LibreNMS vulnerable to Reflected-XSS in `report_this` function

LibreNMS is an open-source, PHP/MySQL/SNMP-based network monitoring system. Prior to 25.7.0, there is a reflected-XSS in `report_this` function in `librenms/includes/functions.php`. The `report_this` function had improper filtering (`htmlentities` function was incorrectly use in a href environment), which caused the `project_issues` parameter to trigger an XSS vulnerability. This vulnerability is fixed in 25.7.0.

LibreNMS allows stored XSS in Alert Template name field

librenms is a community-based GPL-licensed network monitoring system. A stored Cross-Site Scripting (XSS) vulnerability exists in LibreNMS (<= 25.6.0) in the Alert Template creation feature. This allows a user with the admin role to inject malicious JavaScript, which will be executed when the template is rendered, potentially compromising other admin accounts. This vulnerability is fixed in 25.8.0.

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

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.

LibreNMS stored Cross-site Scripting vulnerability in poller group name

LibreNMS is PHP/MySQL/SNMP based network monitoring software. LibreNMS v25.4.0 and prior suffers from a Stored Cross-Site Scripting (XSS) Vulnerability in the `group name` parameter of the `http://localhost/poller/groups` form. This vulnerability allows attackers to inject malicious scripts into web pages viewed by other users. LibreNMS v25.5.0 contains a patch for the issue.

Cross-site Scripting (XSS) - Generic in librenms/librenms

Cross-site Scripting (XSS) - Generic in GitHub repository librenms/librenms prior to 22.10.0.

Cross-site Scripting (XSS) - Stored in librenms/librenms

Cross-site Scripting (XSS) - Stored in GitHub repository librenms/librenms prior to 22.10.0.

Cross-site Scripting (XSS) - Stored in librenms/librenms

Cross-site Scripting (XSS) - Stored in GitHub repository librenms/librenms prior to 22.10.0.

Stored XSS-LibreNMS-Display Name 2 in librenms

librenms is a community-based GPL-licensed network monitoring system. Affected versions are subject to a stored XSS on the parameters (Replace $DEVICE_ID with your specific $DEVICE_ID value):`/device/$DEVICE_ID/edit` -> param: display. Librenms versions up to 24.11.0 allow remote attackers to inject malicious scripts. When a user views or interacts with the page displaying the data, the malicious script executes immediately, leading to potential unauthorized actions or data exposure. This issue has been addressed in release version 24.12.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Stored-XSS-LibreNMS-Display-Name in librenms

librenms is a community-based GPL-licensed network monitoring system. Affected versions are subject to a stored XSS on the parameters (Replace $DEVICE_ID with your specific $DEVICE_ID value):`/device/$DEVICE_ID/edit` -> param: display. Librenms versions up to 24.10.1 allow remote attackers to inject malicious scripts. When a user views or interacts with the page displaying the data, the malicious script executes immediately, leading to potential unauthorized actions or data exposure. This issue has been addressed in release version 24.11.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Cross-site Scripting (XSS) - Stored in librenms/librenms

Cross-site Scripting (XSS) - Stored in GitHub repository librenms/librenms prior to 22.10.0.

Improperly Controlled Modification of Dynamically-Determined Object Attributes in librenms/librenms

A user is able to enable their own account if it was disabled by an admin while the user still holds a valid session. Moreover, the username is not properly sanitized in the admin user overview. This enables an XSS attack that enables an attacker with a low privilege user to execute arbitrary JavaScript in the context of an admin's account.

Deserialization of Untrusted Data in librenms/librenms

Deserialization of Untrusted Data in GitHub repository librenms/librenms prior to 22.10.0.

Cross-site Scripting (XSS) - Generic in librenms/librenms

Cross-site Scripting (XSS) - Generic in GitHub repository librenms/librenms prior to 22.10.0.

The installation process in LibreNMS before 2017-08-18 allows remote attackers to read arbitrary files, related to html/install.php.

Insufficient Session Expiration in librenms/librenms

Insufficient Session Expiration in GitHub repository librenms/librenms prior to 22.10.0.

A stored cross-site scripting (XSS) vulnerability in the Device Settings section of LibreNMS v24.9.0 to v24.10.0 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Display Name parameter.

Stored XSS-LibreNMS-Ports in librenms

librenms is a community-based GPL-licensed network monitoring system. Affected versions are subject to a stored XSS on the parameter: `/ajax_form.php` -> param: descr. Librenms version up to 24.10.1 allow remote attackers to inject malicious scripts. When a user views or interacts with the page displaying the data, the malicious script executes immediately, leading to potential unauthorized actions or data exposure. This issue has been addressed in release version 24.11.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.