CVE-2021-47700

Nagios XI < 5.8.7 Insecure Permissions on Highcharts Temporary Directory

Published Oct 30, 2025 CVSS 4.0 · 8.5 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

Vendor Solution

Nagios addresses this vulnerability as "Fixed security permissions issue with apache user and temp directory used by Highcharts."

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Nagios nagios Xi
CPEs cpe:2.3:a:nagios:nagios_xi:*:*:*:*:*:*:*:*
Vendors & Products Nagios nagios Xi
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Nagios
Nagios xi
Vendors & Products Nagios
Nagios xi
Type Values Removed Values Added
Description 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.
Title Nagios XI < 5.8.7 Insecure Permissions on Highcharts Temporary Directory
Weaknesses CWE-250
References
Metrics cvssV4_0

{'score': 8.5, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Nov 17, 2025, 6:21 PM
Reserved
Oct 30, 2025, 3:47 PM
Status
Analyzed
Published
Oct 30, 2025, 10:15 PM
Modified
Jun 17, 2026, 4:18 AM