{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "2.5.46"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "86496aecc"
            }
          ],
          "repo": "https://github.com/misp/misp",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "CIRCL",
    "cwe_ids": [
      "CWE-693",
      "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90957.json"
  },
  "details": "Affected versions of MISP serve uploaded SVG images inline without a restrictive browser sandbox.\n\n\nThe commit explains that SVG files are XML documents rather than passive bitmap images. While scripts inside SVG do not execute when the SVG is rendered through a normal \u003cimg\u003e, they can execute when the SVG is navigated to directly or embedded as a document. In that case, malicious \u003cscript\u003e elements, event handlers, or javascript: URLs execute on the MISP origin with the viewer’s session.\n\n\nThe affected use cases include:\n\n\n\n - organisation SVG logos;\n - event-report SVG pictures.\n\n\n\n\n\n\nImportantly, the vulnerable behavior is on the serve path, not merely the upload path: the patch notes that a malicious SVG uploaded while SVG support was enabled could remain dangerous even after uploads were later disabled.\n\n\n\nVersion affected: ≤2.5.45",
  "id": "CVE-2026-90957",
  "modified": "2026-09-18T03:30:25.512768676Z",
  "published": "2026-09-14T13:03:01.748Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90957.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90957"
    },
    {
      "type": "FIX",
      "url": "https://github.com/MISP/MISP/commit/86496aecc"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/MISP/MISP"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "MISP: Stored XSS via Inline-Served SVG Organisation Logos and Report Pictures"
}