{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "9.0.0"
              },
              {
                "fixed": "9.0.3"
              },
              {
                "introduced": "8.0.0"
              },
              {
                "fixed": "8.6.2"
              },
              {
                "introduced": "7.0.0"
              },
              {
                "fixed": "7.9.3"
              },
              {
                "introduced": "6.0.0"
              },
              {
                "fixed": "6.7.2"
              },
              {
                "introduced": "0"
              },
              {
                "fixed": "5.9.3"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "85c08ab6a4cc537360cff3075c18b1c032235517"
            },
            {
              "fixed": "8388977e41921494c149dc38b092c8be42d9c64c"
            },
            {
              "introduced": "5410b3cc3ac10fe48c73e1159d40c1410727b61d"
            },
            {
              "fixed": "b9d4e60833ee8a9adb055150e2b56bdf5fa8504a"
            },
            {
              "introduced": "46400b6fae33c7a9084de2d786988720f43d37e0"
            },
            {
              "fixed": "6642237dd435fed4657d677e60fe8a87bfe62d88"
            },
            {
              "introduced": "6d23752cdf7477dd69a92465f2934ec40f79151b"
            },
            {
              "fixed": "397a331698d712c192518ff87956b41cda039f3e"
            },
            {
              "introduced": "0"
            },
            {
              "fixed": "cd54fc6c1840d98de8c1e183423eb5585354bb91"
            }
          ],
          "repo": "https://github.com/derhansen/sf_event_mgt",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "TYPO3",
    "cwe_ids": [
      "CWE-862"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77128.json"
  },
  "details": "The extension fails to enforce enable-field restrictions on a repository query parameter. An unauthenticated remote user can pass a demand-override parameter to view hidden or time-restricted events, unless the disableOverrideDemand plugin setting is active. Exploitation of this issue requires only that disableOverrideDemand is not enabled.",
  "id": "CVE-2026-77128",
  "modified": "2026-08-28T11:30:28.893262538Z",
  "published": "2026-08-25T09:00:44.929Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://packagist.org/"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77128.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-77128"
    },
    {
      "type": "ADVISORY",
      "url": "https://typo3.org/security/advisory/typo3-ext-sa-2026-023"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/derhansen/sf_event_mgt"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Broken Access Control in extension \"Event management and registration\" (sf_event_mgt)"
}