VULNERABILITY INTELLIGENCE
CVE-2026-48549
CVSS score6.5 MEDIUM
EPSS probability0.26%
CISA KEVNot currently listed
Published2026-08-26
Last modified2026-09-24
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
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.
Weakness classification
- disclosure@vulncheck.com: CWE-352