{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "source": "REFERENCES"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "cc13416d606d91d543ce1f1e41387750f8450153"
            }
          ],
          "repo": "https://github.com/misp/cti-transmute",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "CIRCL",
    "cwe_ids": [
      "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73159.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "last_affected": "1.4.0"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "Affected versions of cti-transmute allow a tag's icon value to be stored and later interpolated into HTML through Vue's v-html. The helper mapIcon() previously constructed an HTML string directly from the icon value:\n\n\n\u003ci class=\"fas fa-${name}\"\u003e\u003c/i\u003e\n\n\nBecause the icon is user-supplied, a crafted value could break out of the intended markup and inject attacker-controlled HTML. When the affected tag was later rendered, including on the administrative triage interface, the payload could execute in the viewer's browser.\n\n\nThe patch mitigates the issue at multiple layers: v-html is replaced with Vue :class binding, mapIcon() now returns only a constrained FontAwesome class string, and the backend validates icons against the FontAwesome catalogue or a strict [a-z0-9-]{1,40} slug pattern before storing them.",
  "id": "CVE-2026-73159",
  "modified": "2026-08-13T03:52:10.670460817Z",
  "published": "2026-08-11T08:45:59.398Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73159.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-73159"
    },
    {
      "type": "FIX",
      "url": "https://github.com/MISP/cti-transmute/commit/cc13416d606d91d543ce1f1e41387750f8450153"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/MISP/cti-transmute"
    }
  ],
  "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": "cti-transmute Stored XSS via Crafted Tag Icon on Admin Triage Interface"
}