CVE-2026-27636
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.12%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.12% probability · 81th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-434
- Affected
- freescout/freescout
- Source
- security-advisories@github.com
References
- https://github.com/freescout-help-desk/freescout/commit/9984071e6f1b4e633fdcffcea82bbebc9c1e009cPatch
- https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-6gcm-v8xf-j9v9Not Applicable
- https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-mw88-x7j3-74vcExploit, Vendor Advisory
- https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-6gcm-v8xf-j9v9Not Applicable
- https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-mw88-x7j3-74vcExploit, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.