An issue was discovered in the Manage Plugins page in Nagios XI before 5.8.0. Because the line-ending conversion feature is mishandled during a plugin upload, a remote, authenticated admin user can execute operating-system commands.

Creation of a Temporary Directory with Insecure Permissions in Nagios XI 5.7.5 and earlier allows for Privilege Escalation via creation of symlinks, which are mishandled in getprofile.sh.

Incorrect File Permissions in Nagios XI 5.7.5 and earlier and Nagios Fusion 4.1.8 and earlier allows for Privilege Escalation to root. Low-privileged users are able to modify files that are included (aka sourced) by scripts executed by root.

Insufficient Verification of Data Authenticity in Nagios Fusion 4.1.8 and earlier and Nagios XI 5.7.5 and earlier allows for Escalation of Privileges or Code Execution as root via vectors related to an untrusted update package to upgrade_to_latest.sh.

Improper input validation in the Auto-Discovery component of Nagios XI before 5.7.5 allows an authenticated attacker to execute remote code.

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

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

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).

Nagios XI 5.7.2 is affected by a remote code execution (RCE) vulnerability. An authenticated user can inject additional commands into normal webapp query.

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.

NagiosXI 5.6.11 is affected by a remote code execution (RCE) vulnerability. An authenticated nagiosadmin user can inject additional commands into a request. NOTE: the vendor disputes whether the CVE and its references are actionable because all technical details are omitted, and the only option is to pay for a subscription service where technical details may be disclosed at an unspecified later time

An issue was found in Nagios XI before 5.7.3. There is a privilege escalation vulnerability in backend scripts that ran as root where some included files were editable by nagios user. This issue was fixed in version 5.7.3.

Graph Explorer in Nagios XI before 5.7.2 allows XSS via the link url option.

In Nagios XI before 5.7.3, ajaxhelper.php allows remote authenticated attackers to execute arbitrary commands via cmdsubsys.

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

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

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

Cross-site scripting (XSS) vulnerability in Nagios XI before 5.5.11 allows attackers to inject arbitrary web script or HTML via the xiwindow parameter.

Privilege escalation in Nagios XI before 5.5.11 allows local attackers to elevate privileges to root via write access to config.inc.php and import_xiconfig.php.