CVE-2021-47700

Nagios XI < 5.8.7 Insecure Permissions on Highcharts Temporary Directory

CVSS 8.5 HIGHEPSS 0.3%CWE-250

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 8.5EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

30 Oct 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Nagios XI versions prior to 5.8.7 used a temporary directory for Highcharts exports with overly permissive ownership/permissions under the Apache user. Local or co-hosted processes could read/overwrite export artifacts or manipulate paths, risking disclosure or tampering and potential code execution depending on deployment.

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Affected products

Nagios · XI

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References

https://www.nagios.com/changelog/nagios-xi/https://www.vulncheck.com/advisories/nagios-xi-insecure-permissions-on-highcharts-temporary-directory