VULNERABILITY INTELLIGENCE

CVE-2021-40344

CVSS score7.2 HIGH
EPSS probability64.80%
CISA KEVNot currently listed
Published2021-10-26
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Description

An issue was discovered in Nagios XI 5.8.5. In the Custom Includes section of the Admin panel, an administrator can upload files with arbitrary extensions as long as the MIME type corresponds to an image. Therefore it is possible to upload a crafted PHP script to achieve remote command execution.

Weakness classification

  • nvd@nist.gov: CWE-434

Primary references