CVE-2024-14000: Nagios XI · XSS or 'Cross-site Scripting'
Affects Nagios XISource CVE Database V5
Not known to be exploited · CVSS 5.1 Medium : upgrade to 2024R1.1.3 when convenient.
Data as of 26 Oct 2026, 09:15 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 47% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 2024R1.1.3
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 30 Oct 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade Nagios XI to 2024R1.1.3.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| NagiosXI | Affected
| Fixed in
|
AI-suggested
- Immediately upgrade Nagios XI installations to version 2024R1.1.3 or later once available to ensure the vulnerability is patched.
- Until patching is possible, restrict access to the Capacity Planning Report component using network segmentation, firewall rules, or Nagios XI’s internal access controls to limit exposure.
- Implement strict input validation and output encoding on any custom or third-party plugins or components interacting with user input to prevent injection of malicious scripts.
- Educate users about the risks of clicking unknown or suspicious links related to Nagios XI reports to reduce the likelihood of successful social engineering.
- Monitor web server and application logs for unusual requests or payloads targeting the Capacity Planning Report URLs.
- Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts within the Nagios XI web interface.
- Regularly review and update Nagios XI and all associated components as part of a robust patch management program.
- Conduct security assessments and penetration tests focusing on web interface vulnerabilities to detect similar issues proactively.
Description
Nagios XI versions prior to 2024R1.1.3 are vulnerable to cross-site scripting (XSS) via the Capacity Planning Report component. Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in the context of a victim's browser.