Arbitrary file upload in Nagios Nagios_xi

CVE-2021-40344

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…

Vulnerability class: Unrestricted File Upload

EPSS: 0.662 (99.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-40344?
CVE-2021-40344 is a high-severity vulnerability in Nagios Nagios_xi, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.2/10. Published 2021-10-26.
How severe is CVE-2021-40344?
High severity. CVSS v3 base score is 7.2 out of 10.