CVE-2026-27636 (GCVE-0-2026-27636)

Vulnerability from cvelistv5 – Published: 2026-02-25 03:41 – Updated: 2026-02-25 03:41
VLAI?
Title
FreeScout: Missing .htaccess in Restricted File Extensions Allows Remote Code Execution on Apache
Summary
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.
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
Impacted products
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "freescout",
          "vendor": "freescout-help-desk",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.8.206"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "FreeScout is a free help desk and shared inbox built with PHP\u0027s Laravel framework. Prior to version 1.8.206, FreeScout\u0027s 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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-434",
              "description": "CWE-434: Unrestricted Upload of File with Dangerous Type",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-25T03:41:33.166Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-mw88-x7j3-74vc",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-mw88-x7j3-74vc"
        },
        {
          "name": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-6gcm-v8xf-j9v9",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-6gcm-v8xf-j9v9"
        },
        {
          "name": "https://github.com/freescout-help-desk/freescout/commit/9984071e6f1b4e633fdcffcea82bbebc9c1e009c",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/freescout-help-desk/freescout/commit/9984071e6f1b4e633fdcffcea82bbebc9c1e009c"
        }
      ],
      "source": {
        "advisory": "GHSA-mw88-x7j3-74vc",
        "discovery": "UNKNOWN"
      },
      "title": "FreeScout: Missing .htaccess in Restricted File Extensions Allows Remote Code Execution on Apache"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-27636",
    "datePublished": "2026-02-25T03:41:33.166Z",
    "dateReserved": "2026-02-20T22:02:30.028Z",
    "dateUpdated": "2026-02-25T03:41:33.166Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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