cve.bz

CVE-2021-40344

7.2 highEPSS 65%

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.

Severity

CVSS 3.1

7.2 high
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS
65% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-31)
CWE
CWE-434
Published
Modified
Record from
the NVD, synced

Affected

References

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