CVE-2026-48548
Nagios Core CSRF via cmd.cgi
- State
- Published
- Severity
- 6.9 Medium
- Published
- Aug 26, 2026
- Updated
- Aug 26, 2026
- Reserved
- May 21, 2026
Description
Nagios Core before 4.5.12 contains a cross-site request forgery vulnerability in cmd.cgi where the CSRF protection mechanism passes validation when the NagFormId cookie is absent. Attackers can craft a malicious cross-site POST request to execute arbitrary Nagios commands as a currently authenticated user without their knowledge or consent.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N | VulnCheck |
Weaknesses
- CWE-352 Cross-Site Request Forgery (CSRF)
Affected Products
| Product | Versions |
|---|---|
Nagios CoreNagios Enterprises, LLC. |
|
References
- Security Disclosuresvendor-advisorypatch
- Changelogrelease-notes
- https://www.vulncheck.com/advisories/nagios-core-csrf-via-cmd-cgithird-party-advisory
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