{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "4.5.14"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "cfa5684eb50facc3183d5ddb01d853b9eb9cc218"
            }
          ],
          "repo": "https://github.com/nagiosenterprises/nagioscore",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48552.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "fixed": "2026R1.7"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "Nagios Core before 4.5.14 and Nagios XI before 2026R1.7 are vulnerable to DOM-based cross-site scripting in jsonquery.js. Unencoded JSON string values reflected from stored fields are inserted into the DOM without sanitization, allowing attackers to run arbitrary JavaScript in the victim's browser.",
  "id": "CVE-2026-48552",
  "modified": "2026-08-15T04:07:08.566113070Z",
  "published": "2026-08-12T16:34:33.654Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48552.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/NagiosEnterprises/nagioscore/blob/master/Changelog"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48552"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/nagios-core-xi-dom-based-xss-via-jsonquery-js"
    },
    {
      "type": "FIX",
      "url": "https://www.nagios.com/security-disclosures/nagios-core/"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Nagios Core / XI DOM-based XSS via jsonquery.js"
}