{"id":"CVE-2023-40932","aliases":["EUVD-2023-45471","GHSA-545q-9j8x-q2gf"],"status":"published","title":"A Cross-site scripting (XSS) vulnerability in Nagios XI version 5.11.1 and below allows...","description":"A Cross-site scripting (XSS) vulnerability in Nagios XI version 5.11.1 and below allows authenticated attackers with access to the custom logo component to inject arbitrary javascript or HTML via the alt-text field. This affects all pages containing the navbar including the login page which means the attacker is able to to steal plaintext credentials.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00863,"percentile":0.59033,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2023-09-19T00:00:00Z","modified":"2026-07-09T01:18:36Z","products":[{"vendor":"nagios","product":"nagios_xi"}],"references":[{"url":"https://www.nagios.com/products/security/","tags":["x_transferred","Vendor Advisory"]},{"url":"https://outpost24.com/blog/nagios-xi-vulnerabilities/","tags":["x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-40932"},{"url":"http://nagios.com"},{"url":"https://outpost24.com/blog/nagios-xi-vulnerabilities"},{"url":"https://www.nagios.com/products/security"},{"url":"https://github.com/advisories/GHSA-545q-9j8x-q2gf"}],"sources":{"cve":[{"id":"CVE-2023-40932","description":"A Cross-site scripting (XSS) vulnerability in Nagios XI version 5.11.1 and below allows authenticated attackers with access to the custom logo component to inject arbitrary javascript or HTML via the alt-text field. This affects all pages containing the navbar including the login page which means the attacker is able to to steal plaintext credentials.","status":"published","published":"2023-09-19T00:00:00Z","modified":"2026-07-09T00:27:54.217Z","updated_at":"2026-11-02T14:35:22.309324Z"}],"euvd":[{"id":"EUVD-2023-45471","description":"A Cross-site scripting (XSS) vulnerability in Nagios XI version 5.11.1 and below allows authenticated attackers with access to the custom logo component to inject arbitrary javascript or HTML via the alt-text field. This affects all pages containing the navbar including the login page which means the attacker is able to to steal plaintext credentials.","status":"published","published":"2023-09-19T00:00:00Z","modified":"2026-07-09T00:27:54Z","updated_at":"2026-11-02T18:20:05.755223Z"}],"ghsa":[{"id":"GHSA-545q-9j8x-q2gf","title":"A Cross-site scripting (XSS) vulnerability in Nagios XI version 5.11.1 and below allows...","description":"A Cross-site scripting (XSS) vulnerability in Nagios XI version 5.11.1 and below allows authenticated attackers with access to the custom logo component to inject arbitrary javascript or HTML via the alt-text field. This affects all pages containing the navbar including the login page which means the attacker is able to to steal plaintext credentials.","status":"published","published":"2023-09-20T00:30:15Z","modified":"2024-04-04T07:44:39Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:56:54.282267Z"}],"nvd":[{"id":"CVE-2023-40932","description":"A Cross-site scripting (XSS) vulnerability in Nagios XI version 5.11.1 and below allows authenticated attackers with access to the custom logo component to inject arbitrary javascript or HTML via the alt-text field. This affects all pages containing the navbar including the login page which means the attacker is able to to steal plaintext credentials.","status":"published","published":"2023-09-19T23:15:10.237Z","modified":"2026-07-09T01:18:36.927Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:08:29.595868Z"}]}}