Nagios XI < 5.11.3 XSS via Graph Explorer

Advisories

severity: medium
date: October 30, 2025
Affecting: XI < 5.11.3
CVE: CVE-2023-7315
CWE: CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
CVSS: 5.1
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
References: Nagios XI Security Disclosures
Nagios XI Changelog
Credit: Aleksey Solovev from Positive Technologies
Description: 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.