CVE-2020-36863

HIGH

Nagios XI <5.7.2 - RCE

Title source: llm
STIX 2.1

Description

Nagios XI versions prior to 5.7.2 allow PHP files to be uploaded to the Audio Import directory and executed from that location. The upload handler did not properly restrict file types or enforce storage outside of the webroot, and the web server permitted execution within the upload directory. An authenticated attacker with access to the audio import feature could upload a crafted PHP file and then request it to achieve remote code execution with the privileges of the application service.

References (2)

Core 2
Core References
Release Notes release-notes patch
https://www.nagios.com/changelog/nagios-xi/

Scores

CVSS v3 8.8
EPSS 0.0081
EPSS Percentile 74.4%
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 none
Automatable no
Technical Impact total

Details

CWE
CWE-434
Status published
Products (1)
nagios/nagios_xi < 5.7.2
Published Oct 30, 2025
Tracked Since Feb 18, 2026