Nagios vulnerabilities

CVE-2013-10071 Medium · 6.1 CWE-79 Oct 30, 2025

Nagios XI < 2012R1.6 Reflected XSS via Dashlet AJAX Load Functionality

Nagios XI versions prior to 2012R1.6 contain a reflected cross-site scripting (XSS) vulnerability in the dashboard dashlet AJAX load functionality. Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in the context of a victim's browser.

CVE-2012-10063 Critical · 9.8 CWE-89 Oct 30, 2025

Nagios XI < 2012R1.3 Authenticated SQL Injection in Legacy CCM

Nagios XI versions prior to 2012R1.3 contain a SQL injection vulnerability in the legacy Core Configuration Manager (CCM) interface. Authenticated users could manipulate SQL queries by supplying crafted input to specific CCM parameters, potentially allowing access to configuration data stored in the application database. Successful exploitation could disclose or modify notification data and, in some cases, impact the application database more broadly.

CVE-2011-10040 Medium · 5.4 CWE-79 Oct 30, 2025

Nagios XI < 2011R1.9 XSS via Status/Report Page Link Functions

Nagios XI versions prior to 2011R1.9 are vulnerable to cross-site scripting (XSS) via the link-handling functions used by status and report pages. Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in the context of a victim's browser.

CVE-2011-10039 Medium · 5.4 CWE-79 Oct 30, 2025

Nagios XI < 2011R1.9 XSS via Alert Heatmap Report & “My Reports” Listing

Nagios XI versions prior to 2011R1.9 are vulnerable to cross-site scripting (XSS) via the Alert Heatmap report and the “My Reports” listing of the web interface. Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in the context of a victim's browser.

CVE-2011-10038 Medium · 5.4 CWE-79 Oct 30, 2025

Nagios XI < 2011R1.9 XSS via Recurring Downtime Script

Nagios XI versions prior to 2011R1.9 are vulnerable to cross-site scripting (XSS) via the recurring downtime script of the web interface. Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in the context of a victim's browser.

CVE-2011-10037 Medium · 5.4 CWE-79 Oct 30, 2025

Nagios XI < 2011R1.9 XSS via xiwindow Variables Affecting Permalinks

Nagios XI versions prior to 2011R1.9 are vulnerable to cross-site scripting (XSS) via the handling of xiwindow variables used to build permalinks in the web interface. Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in the context of a victim's browser.

CVE-2011-10036 Medium · 5.4 CWE-79 Oct 30, 2025

Nagios XI < 2011R1.9 XSS via backend_url JavaScript Link Handler

Nagios XI versions prior to 2011R1.9 are vulnerable to cross-site scripting (XSS) via the handling of the "backend_url" JavaScript link. Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in the context of a victim's browser.

CVE-2011-10035 High · 7.0 CWE-367 Oct 30, 2025

Nagios XI < 2011R1.9 Race Conditions in Crontab Install Scripts LPE

Nagios XI versions prior to 2011R1.9 contain privilege escalation vulnerabilities in the scripts that install or update system crontab entries. Due to time-of-check/time-of-use race conditions and missing synchronization or final-path validation, a local low-privileged user could manipulate filesystem state during crontab installation to influence the files or commands executed with elevated privileges, resulting in execution with higher privileges.

CVE-2025-60425 High · 8.6 CWE-491 Oct 27, 2025

Nagios Fusion v2024R1.2 and v2024R2 does not invalidate already existing session tokens…

Nagios Fusion v2024R1.2 and v2024R2 does not invalidate already existing session tokens when the two-factor authentication mechanism is enabled, allowing attackers to perform a session hijacking attack.

CVE-2025-60424 High · 7.6 CWE-287 Oct 27, 2025

Improper Authentication in Nagios Fusion

A lack of rate limiting in the OTP verification component of Nagios Fusion v2024R1.2 and v2024R2 allows attackers to bypass authentication via a bruteforce attack.

CVE-2025-44824 Medium · 6.5 CWE-863 Oct 7, 2025

Nagios Log Server before 2024R1.3.2 allows authenticated users (with read-only API access) to...

Nagios Log Server before 2024R1.3.2 allows authenticated users (with read-only API access) to stop the Elasticsearch service via a /nagioslogserver/index.php/api/system/stop?subsystem=elasticsearch call. The service stops even though "message": "Could not stop elasticsearch" is in the API response. This is GL:NLS#474.

CVE-2025-44823 High · 8.8 CWE-497 Oct 7, 2025

Nagios Log Server before 2024R1.3.2 allows authenticated users to retrieve cleartext...

Nagios Log Server before 2024R1.3.2 allows authenticated users to retrieve cleartext administrative API keys via a /nagioslogserver/index.php/api/system/get_users call. This is GL:NLS#475.

CVE-2025-34227 High · 8.8 CWE-78 Sep 25, 2025

Nagios XI < 2026R1 Configuration Wizard Authenticated Command Injection

Nagios XI < 2026R1 is vulnerable to an authenticated command injection vulnerability within the MongoDB Database, MySQL Query, MySQL Server, Postgres Server, and Postgres Query wizards. It is possible to inject shell characters into arguments provided to the service and execute arbitrary system commands on the underlying host as the `nagios` user.

CVE-2021-25298 High · 8.8 KEV Urgent · 72 Public exploit CWE-78 Feb 15, 2021

Nagios XI OS Command Injection

Nagios XI version xi-5.7.5 is affected by OS command injection. The vulnerability exists in the file /usr/local/nagiosxi/html/includes/configwizards/cloud-vm/cloud-vm.inc.php due to improper sanitization of authenticated user-controlled input by a single HTTP request, which can lead to OS command injection on the Nagios XI server.

CVE-2021-25297 High · 8.8 KEV Urgent · 72 Public exploit CWE-78 Feb 15, 2021

Nagios XI OS Command Injection

Nagios XI version xi-5.7.5 is affected by OS command injection. The vulnerability exists in the file /usr/local/nagiosxi/html/includes/configwizards/switch/switch.inc.php due to improper sanitization of authenticated user-controlled input by a single HTTP request, which can lead to OS command injection on the Nagios XI server.

CVE-2021-25296 High · 8.8 KEV Urgent · 72 Public exploit Feb 15, 2021

Nagios XI OS Command Injection

Nagios XI version xi-5.7.5 is affected by OS command injection. The vulnerability exists in the file /usr/local/nagiosxi/html/includes/configwizards/windowswmi/windowswmi.inc.php due to improper sanitization of authenticated user-controlled input by a single HTTP request, which can lead to OS command injection on the Nagios XI server.

CVE-2019-15949 High · 8.8 KEV Urgent · 76 Public exploit CWE-78 Sep 5, 2019

Nagios XI Remote Code Execution Vulnerability

Nagios XI before 5.6.6 allows remote command execution as root. The exploit requires access to the server as the nagios user, or access as the admin user via the web interface. The getprofile.sh script, invoked by downloading a system profile (profile.php?cmd=download), is executed as root via a passwordless sudo entry; the script executes check_plugin, which is owned by the nagios user. A user logged into Nagios XI with permissions to modify plugins, or the nagios user on the server, can modify the check_plugin executable and insert malicious commands to execute as root.