{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "0.1.3b"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "a04281bac4b0a286df28723ed8291b1cd62f7447"
            }
          ],
          "repo": "https://github.com/fearlessgeekmedia/fearlesscms",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-56wm-3q3v-m93m"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-94"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55695.json"
  },
  "details": "FearlessCMS is a flat-file content management system centered on simplicity and open source. In 0.1.2b and earlier, an authenticated administrator can set an arbitrary Git repository URL through admin/updater-handler.php and trigger perform_update, which passes the URL to update.sh. The updater clones the repository and replaces the live plugins/, admin/, and includes/ directories without verifying the repository's identity, signatures, or contents. Because router.php permits existing PHP files under plugins to be executed by the PHP development server, attacker-supplied update content can execute arbitrary PHP with the web server process's privileges and persist as a backdoor. This issue is fixed in version 0.1.3b.",
  "id": "CVE-2026-55695",
  "modified": "2026-10-14T02:30:38.702591773Z",
  "published": "2026-10-13T15:51:02.854Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55695.json"
    },
    {
      "type": "FIX",
      "url": "https://github.com/fearlessgeekmedia/FearlessCMS/commit/6dba91d496463e3940a2c917af3cae97b191de92"
    },
    {
      "type": "FIX",
      "url": "https://github.com/fearlessgeekmedia/FearlessCMS/pull/64"
    },
    {
      "type": "WEB",
      "url": "https://github.com/fearlessgeekmedia/FearlessCMS/releases/tag/0.1.3"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/fearlessgeekmedia/FearlessCMS/security/advisories/GHSA-56wm-3q3v-m93m"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55695"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "FearlessCMS: Remote Code Execution via Unvalidated Update Repository URL in System Updater"
}