CVE-2021-43584

Severity: medium (CVSS 4.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2024-01-24 · updated 2026-06-17
Weakness: CWE-79

Description

DOM-based Cross Site Scripting (XSS vulnerability in 'Tail Event Logs' functionality in Nagios Nagios Cross-Platform Agent (NCPA) before 2.4.0 allows attackers to run arbitrary code via the name element when filtering for a log.

Affected products

Nagios Cross Platform Agent: before 2.4.0 — fixed in 2.4.0

How to fix

Upgrade to a fixed version: Nagios Cross Platform Agent 2.4.0. Check the vendor advisory for mitigations.

References

https://github.com/NagiosEnterprises/ncpa/issues/830
https://github.com/NagiosEnterprises/ncpa/issues/830

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