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
- cve@mitre.org — Release Notes, Vendor Advisory
- cve@mitre.org — Not Applicable
- cve@mitre.org — Exploit, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Release Notes, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Not Applicable
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory