CVE-2026-48548CWE-352csrf

CVE-2026-48548

Medium · published August 26, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
10.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
CVSS v4.0
6.9 · 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
EPSS
0.00212 · 10.9th percentile
Weakness
CWE-352 · Cross-Site Request Forgery (CSRF)
Published
2026-08-26T20:16Z
References (3)
https://github.com/NagiosEnterprises/nagioscore/blob/master/Changelog · [email protected]https://www.nagios.com/security-disclosures/nagios-core/ · [email protected]https://www.vulncheck.com/advisories/nagios-core-csrf-via-cmd-cgi · [email protected]
EPSS history
Timeline
  • 28 AUG 06:44Z
    EPSS moved — → 0%
    epss
  • 26 AUG 15:33Z
    Nagios Core CSRF via cmd.cgi
    cvelistv5