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Description

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.

PUBLISHED Reserved 2025-10-17 | Published 2025-10-30 | Updated 2025-11-03 | Assigner VulnCheck




MEDIUM: 6.2CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N

Problem types

CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')

Product status

Default status
unaffected

Any version before 4.2.0
affected

Credits

Tisha Manandhar finder

References

www.nagios.com/products/security/ vendor-advisory patch

www.nagios.com/changelog/nagios-fusion/ release-notes patch

www.vulncheck.com/...l-settings-stored-xss-via-smtp-sendmail third-party-advisory

cve.org (CVE-2023-7312)

nvd.nist.gov (CVE-2023-7312)

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