Description
Nagios XI < 2024R1.3.2 contains a remote code execution vulnerability by chaining two flaws: an arbitrary file upload and a path traversal in the Core Config Snapshots interface. The issue arises from insufficient validation of file paths and extensions during MIB upload and snapshot rename operations. Exploitation results in the placement of attacker-controlled PHP files in a web-accessible directory, executed as the www-data user.
References (5)
Core 5
Core References
Exploit, Third Party Advisory
https://theyhack.me/Nagios-XI-Authenticated-RCE/
Exploit, Third Party Advisory technical-description
exploit
https://theyhack.me/Nagios-XI-Authenticated-RCE
Various Sources vendor-advisory
patch
https://www.nagios.com/changelog/nagios-xi/
Various Sources vendor-advisory
patch
https://www.nagios.com/products/security/#nagios-xi
Third Party Advisory third-party-advisory
https://www.vulncheck.com/advisories/nagios-xi-authenticated-arbitrary-file-upload-path-traversal-rce
Scores
CVSS v3
8.8
EPSS
0.0196
EPSS Percentile
83.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-22
CWE-434
Status
published
Products (2)
nagios/nagios_xi
2024 r1 (13 CPE variants)
nagios/nagios_xi
< 2024
Published
Aug 28, 2025
Tracked Since
Feb 18, 2026