High severity7.2NVD Advisory· Published Feb 25, 2021· Updated Jun 17, 2026

CVE-2021-3273

Description

Nagios XI below 5.7 is affected by code injection in the /nagiosxi/admin/graphtemplates.php component. To exploit this vulnerability, someone must have an admin user account in Nagios XI's web system.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Nagios/XI
cpe:2.3:a:nagios:nagios_xi:*:*:*:*:*:*:*:*
Range: <5.7
Nagios/Nagios XIdescription
Nagios/Nagiosllm-fuzzy
Range: <5.7

Patches

Vulnerability mechanics

References

gist.github.com/leommxj/93edce6f8572cefe79a3d7da4389374envdExploitThird Party Advisory
www.nagios.com/downloads/nagios-xi/change-log/nvdRelease NotesVendor Advisory

News mentions

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