Nagios Fusion versions prior to 4.2.0 contain a stored cross-site scripting (XSS) vulnerability when adding or configuring Email Settings. Unsanitized user input can be stored and later rendered in the administrative UI, causing JavaScript to execute in the browser of any user who views the affected page. An attacker who can add or modify SMTP/email settings or manipulate the sendmail configuration fields could persist a malicious payload that executes in the context of other users' browsers.

Nagios Fusion versions prior to 4.2.0 contain a reflected cross-site scripting (XSS) vulnerability in the license key configuration flow that can result in execution of attacker-controlled script in the browser of a user who follows a crafted URL. While the application server itself is not directly corrupted by the reflected XSS, the resulting browser compromise can lead to credential/session theft and unauthorized administrative actions.

DOM-based Cross Site Scripting (XSS vulnerability in 'Tail Event Logs' functionality in Nagios Nagios Cross-Platform Agent (NCPA) before 2.4.0 allows attackers to run arbitrary code via the name element when filtering for a log.

Nagios XI 5.6.11 allows XSS via the includes/components/ldap_ad_integration/ password parameter.

Nagios XI v5.8.6 was discovered to contain a cross-site scripting (XSS) vulnerability via the System Performance Settings page under the Admin panel.

Nagios XI v5.8.6 was discovered to contain a cross-site scripting (XSS) vulnerability via the System Settings page under the Admin panel.

Nagios XI 5.6.11 allows XSS via the includes/components/ldap_ad_integration/ username parameter.

Nagios XI 5.6.11 allows XSS via the account/main.php theme parameter.

Nagios XI before 5.7.5 is vulnerable to XSS in Account Information (Email field).

Multiple cross-site scripting (XSS) vulnerabilities in config.c in config.cgi in (1) Nagios 3.2.3 and (2) Icinga before 1.4.1 allow remote attackers to inject arbitrary web script or HTML via the expand parameter, as demonstrated by an (a) command action or a (b) hosts action.

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.

Nagios XI versions prior to 5.8.0 are vulnerable to cross-site scripting (XSS) via BPI config ID handling. 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.

Nagios XI versions prior to 5.8.7 using embedded Nagios Core are vulnerable to cross-site scripting (XSS) via the Core UI’s Views URL handling (escape_string()). 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.

Nagios XI versions prior to 5.8.7 are vulnerable to cross-site scripting (XSS) via the Audit Log page’s Send to NLS form. 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.

Nagios XI versions prior to 5.8.0 are vulnerable to cross-site scripting (XSS) via the Views feature URL handling. 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.

The Core Config Manager (CCM) in Nagios XI versions prior to CCM 3.1.4 / Nagios XI 5.8.6 contains a reflected cross-site scripting (XSS) vulnerability via the Test Command 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.

The Core Config Manager (CCM) in Nagios XI versions prior to CCM 3.1.1 / Nagios XI 5.8.2 contains multiple cross-site scripting (XSS) vulnerabilities via the Services page affecting the config_name and service_description fields. 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.

Nagios XI versions prior to 5.8.0 are vulnerable to stored cross-site scripting (XSS) via the My Tools page. 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.

Cross-site scripting (XSS) vulnerability in statusmap.c in statusmap.cgi in Nagios 3.2.3 and earlier allows remote attackers to inject arbitrary web script or HTML via the layer parameter.

The Core Config Manager (CCM) in Nagios XI versions prior to CCM 3.1.1 / Nagios XI 5.8.2 contains multiple cross-site scripting (XSS) vulnerabilities in Overlay modals. 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.

The Core Config Manager (CCM) in Nagios XI versions prior to CCM 3.1.0 / Nagios XI 5.8.0 contais a cross-site scripting (XSS) vulnerability in the Templates pages, specifically in the UI logic that renders and handles the Active/Actions buttons. 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.

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.

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.

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.

Nagios Fusion before 4.1.4 has XSS, aka TPS#13332-13335.

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.

Nagios XI before 5.7.5 is vulnerable to XSS in the Deployment tool (add agent).

A stored cross-site scripting (XSS) vulnerability in the NOC component of Nagios XI version up to and including 2024R1 allows low-privileged users to execute malicious HTML or JavaScript code via the audio file upload functionality from the Operation Center section. This allows any authenticated user to execute arbitrary JavaScript code on behalf of other users, including the administrators.

A vulnerability classified as problematic was found in Nagios NCPA. This vulnerability affects unknown code of the file agent/listener/templates/tail.html. The manipulation of the argument name leads to cross site scripting. The attack can be initiated remotely. Upgrading to version 2.4.0 is able to address this issue. The name of the patch is 5abbcd7aa26e0fc815e6b2b0ffe1c15ef3e8fab5. It is recommended to upgrade the affected component. VDB-216874 is the identifier assigned to this vulnerability.

Nagios Log Server before 2.1.9 contains Reflected XSS in the dropdown box for the alert history and audit log function. All parameters used for filtering are affected. This affects users who open a crafted link or third-party web page.

Nagios Log Server before 2.1.9 contains Stored XSS in the custom column view for the alert history and audit log function through the affected pp parameter. This affects users who open a crafted link or third-party web page.

Nagios XI before 2024R1 was discovered to improperly handle API keys generation (randomly-generated), allowing attackers to possibly generate the same set of API keys for all users and utilize them to authenticate.

The general user interface in Nagios XI versions prior to 5.8.4 is vulnerable to authenticated reflected cross-site scripting. An authenticated victim, who accesses a specially crafted malicious URL, would unknowingly execute the attached payload.

Improper input validation in Nagios Fusion 4.1.8 and earlier allows a remote attacker with control over a fused server to inject arbitrary HTML, aka XSS.

Nagios XI before 5.7.5 is vulnerable to XSS in Dashboard Tools (Edit Dashboard).

Nagios XI before 5.7.5 is vulnerable to XSS in Manage Users (Username field).

Self Authenticated XSS in Nagios Network Analyzer before 2.4.2 via the nagiosna/groups/queries page.

The Favorites component before 1.0.2 for Nagios XI 5.8.0 is vulnerable to XSS.

Nagios XI version xi-5.7.5 is affected by cross-site scripting (XSS). The vulnerability exists in the file /usr/local/nagiosxi/html/admin/sshterm.php due to improper sanitization of user-controlled input. A maliciously crafted URL, when clicked by an admin user, can be used to steal his/her session cookies or it can be chained with the previous bugs to get one-click remote command execution (RCE) on the Nagios XI server.

Nagios XI versions prior to 2024R1.1.3 are vulnerable to cross-site scripting (XSS) via the Executive Summary Report component. 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.

Nagios XI versions prior to < 2024R1.1 is vulnerable to a cross-site scripting (XSS) when a user visits the "missing page" (404) page after following a link from another website. The vulnerable component, page-missing.php, fails to properly validate or escape user-supplied input, allowing an attacker to craft a malicious link that, when visited by a victim, executes arbitrary JavaScript in the victim’s browser within the Nagios XI domain.

Nagios XI versions prior to < 2024R1.1.2 are vulnerable to a reflected cross-site scripting (XSS) via the login page when accessed with older web browsers. Insufficient validation or escaping of user-supplied input reflected by the login page can allow an attacker to craft a malicious link that, when visited by a victim, executes arbitrary JavaScript in the victim’s browser within the Nagios XI origin. The issue is observable under legacy browser behaviors; modern browsers may mitigate some vectors.

Cross Site Scripting (XSS) in Nagios XI 5.7.1 allows remote attackers to run arbitrary code via returnUrl parameter in a crafted GET request.

Nagios XI versions prior to < 2024R1.0.2 are vulnerable to cross-site scripting (XSS) via the Nagios Core Command Expansion page. 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.

Nagios XI versions prior to 5.11.3 are vulnerable to cross-site scripting (XSS) via the Bandwidth Report component. 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.

Nagios Log Server versions prior to 2024R1 are vulnerable to cross-site scripting (XSS) via the Create User function. 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.

Nagios Network Analyzer versions prior to 2024R1 are vulnerable to cross-site scripting (XSS) via the Percentile Calculator menu. 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.

Nagios XI versions prior to 2024R1 are vulnerable to cross-site scripting (XSS) via the Graph Explorer component. 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.

Nagios Log Server versions prior to 2.1.14 are vulnerable to cross-site scripting (XSS) via the Snapshots Page. Untrusted log content was not safely encoded for the output context, allowing attacker-controlled data present in logs to execute script in the victim’s browser within the application origin.

Nagios XI versions prior to 5.11.3 are vulnerable to cross-site scripting (XSS) via the Graph Explorer component. 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.