# 4.0.4

This security release removes the following file extensions from the default whitelist of accepted types for 
uploaded files: `dotm`, `potm`, `jar`, `css`, `js` and `xltm`.

If you require the ability to upload these file types in your projects, you will need to add them back in again.
For more information, see ["Configuring: File types"](https://docs.silverstripe.org/en/4/developer_guides/files/file_security/#configuring-file-types).

<!--- Changes below this line will be automatically regenerated -->

## Change Log

### Security

 * 2018-04-26 [299131ed2](https://github.com/silverstripe/silverstripe-framework/commit/299131ed2) File security documentation (Damian Mooyman) - See [ss-2018-012](http://www.silverstripe.org/download/security-releases/ss-2018-012)
 * 2018-04-25 [be96858](https://github.com/silverstripe/silverstripe-installer/commit/be96858e85272ca62f6f0ff3e24a44aa0248ac4d) Remove jar, dotm, potm, xltm from file extension whitelist, hard-code CSS and JS for TinyMCE support (Robbie Averill) - See [ss-2018-014](http://www.silverstripe.org/download/security-releases/ss-2018-014)
 * 2018-04-24 [f847f186b](https://github.com/silverstripe/silverstripe-framework/commit/f847f186b) Remove password text from session data on failed submission (Aaron Carlino) - See [ss-2018-013](http://www.silverstripe.org/download/security-releases/ss-2018-013)
 * 2018-04-23 [aa365e0](https://github.com/silverstripe/silverstripe-assets/commit/aa365e0) Remove dotm, potm, jar, css, js, xltm from default File.allowed_extensions (Robbie Averill) - See [ss-2018-014](http://www.silverstripe.org/download/security-releases/ss-2018-014)
 * 2018-04-23 [f9c03fa](https://github.com/silverstripe/silverstripe-installer/commit/f9c03fa623dc7237005901efd863256b7d356db7) Prevent php code execution in assets folder (Damian Mooyman) - See [ss-2018-012](http://www.silverstripe.org/download/security-releases/ss-2018-012)
 * 2018-04-23 [1e27835](https://github.com/silverstripe/silverstripe-assets/commit/1e27835) Prevent php code execution in assets folder (Damian Mooyman) - See [ss-2018-012](http://www.silverstripe.org/download/security-releases/ss-2018-012)
 * 2018-04-22 [beec0c0d4](https://github.com/silverstripe/silverstripe-framework/commit/beec0c0d4) regression of SS-2017-002 (Robbie Averill) - See [ss-2018-010](http://www.silverstripe.org/download/security-releases/ss-2018-010)
 * 2018-04-11 [e409d6f67](https://github.com/silverstripe/silverstripe-framework/commit/e409d6f67) Restrict non-admins from being assigned to admin groups (Damian Mooyman) - See [ss-2018-001](http://www.silverstripe.org/download/security-releases/ss-2018-001)
 * 2018-04-10 [9053014a7](https://github.com/silverstripe/silverstripe-framework/commit/9053014a7) Validate against malformed urls (Damian Mooyman) - See [ss-2018-008](http://www.silverstripe.org/download/security-releases/ss-2018-008)
 * 2018-04-10 [2e13ae746](https://github.com/silverstripe/silverstripe-framework/commit/2e13ae746) Prevent code execution in template value resolution (Damian Mooyman) - See [ss-2018-006](http://www.silverstripe.org/download/security-releases/ss-2018-006)
 * 2018-04-09 [db04ed9](https://github.com/silverstripe/silverstripe-admin/commit/db04ed9) Remove on* events as allowed properties (Damian Mooyman) - See [ss-2018-004](http://www.silverstripe.org/download/security-releases/ss-2018-004)
 * 2018-04-08 [d935140a9](https://github.com/silverstripe/silverstripe-framework/commit/d935140a9) Prevent unauthenticated isDev / isTest being allowed (Damian Mooyman) - See [ss-2018-005](http://www.silverstripe.org/download/security-releases/ss-2018-005)

### Bugfixes

 * 2018-02-13 [c6095cf](https://github.com/silverstripe/silverstripe-config/commit/c6095cfc0a07a74bb932e2191215d06f102e992a) word boundary issue with pathname matching (Christopher Joe)