Nagios Core before 4.5.13 and Nagios XI before 2026R1.5 contains a CSRF vulnerability in cmd.cgi. When no Cookie header is present, the double-submit cookie protection can be bypassed by supplying matching NagFormId and nagFormId values in the POST body, allowing a cross-site request to execute Nagios commands as a currently authenticated user.
Metrics
Affected Vendors & Products
References
History
Fri, 28 Aug 2026 21:00:00 +0000
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| First Time appeared |
Nagios xi
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| Vendors & Products |
Nagios xi
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Fri, 28 Aug 2026 17:30:00 +0000
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ssvc
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Wed, 26 Aug 2026 16:00:00 +0000
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| Description | Nagios Core before 4.5.13 and Nagios XI before 2026R1.5 contains a CSRF vulnerability in cmd.cgi. When no Cookie header is present, the double-submit cookie protection can be bypassed by supplying matching NagFormId and nagFormId values in the POST body, allowing a cross-site request to execute Nagios commands as a currently authenticated user. | |
| Title | Nagios Core / XI CSRF via cmd.cgi Double-Submit Cookie | |
| First Time appeared |
Nagios
Nagios nagios Core Nagios nagios Xi |
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| Weaknesses | CWE-352 | |
| CPEs | cpe:2.3:a:nagios:nagios_core:*:*:*:*:*:*:*:* cpe:2.3:a:nagios:nagios_xi:*:*:*:*:*:*:*:* |
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| Vendors & Products |
Nagios
Nagios nagios Core Nagios nagios Xi |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-08-26T15:37:20.083Z
Updated: 2026-08-28T16:00:44.978Z
Reserved: 2026-05-21T18:34:46.418Z
Link: CVE-2026-48549
Updated: 2026-08-27T18:38:57.564Z
Status : Received
Published: 2026-08-26T16:16:26.967
Modified: 2026-08-28T20:17:34.030
Link: CVE-2026-48549
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