Nagios Fusion <4.2.0 Stored XSS via Email Settings
CVE-2023-7312 Published on October 30, 2025
Nagios Fusion < 4.2.0 Email Settings Stored XSS via SMTP/sendmail
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.
Weakness Type
What is a XSS Vulnerability?
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CVE-2023-7312 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2023-7312
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Affected Versions
Nagios Fusion:- Before 4.2.0 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.