CVE-2026-48550 in Nagios Core

Résumé

par MITRE • 12/08/2026

Nagios Core before 4.5.14 and Nagios XI before 2026R1.7 are vulnerable to reflected cross-site scripting in cmd.cgi via the NagFormId parameter. An unauthenticated remote attacker can craft a malicious link that, when followed by an authenticated user, executes arbitrary JavaScript in the victim's browser.

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• Responsable: VulnCheck
• Réserver: 21/05/2026
• Divulgation: 12/08/2026
• Modérer: accepté
• Entrée: VDB-389098
• CPE: prêt
• CWE: CWE-79 (confirmé)
• CVSS: 4.3 (VulDB)
• EPSS: 0.00000
• KEV: non
• Activités: faible
• Secteur: Hostingprovider, Lawfirm, ...

Sources

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-48550
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-48550
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-48550/