{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "63b225e380ffa4dc9a4816a18a53d46b69650ac0"
            }
          ],
          "repo": "https://github.com/freescout-help-desk/freescout",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-434"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27636.json"
  },
  "details": "FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.206, FreeScout's file upload restriction list in `app/Misc/Helper.php` does not include `.htaccess` or `.user.ini` files. On Apache servers with `AllowOverride All` (a common configuration), an authenticated user can upload a `.htaccess` file to redefine how files are processed, enabling Remote Code Execution. This vulnerability can be exploited on its own or in combination with CVE-2026-27637. Version 1.8.206 fixes both vulnerabilities.",
  "id": "CVE-2026-27636",
  "modified": "2026-04-01T23:08:51.717710606Z",
  "published": "2026-02-25T03:41:33.166Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27636.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-6gcm-v8xf-j9v9"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-mw88-x7j3-74vc"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27636"
    },
    {
      "type": "FIX",
      "url": "https://github.com/freescout-help-desk/freescout/commit/9984071e6f1b4e633fdcffcea82bbebc9c1e009c"
    }
  ],
  "related": [
    "GHSA-6gcm-v8xf-j9v9",
    "GHSA-mw88-x7j3-74vc"
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "FreeScout: Missing .htaccess in Restricted File Extensions Allows Remote Code Execution on Apache"
}