yet another blueimp vulnerability. Move to composer.

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+# ⚠️ List of fixed vulnerabilities
+
+## Potential vulnerabilities with PHP+ImageMagick
+> Mitigated: 2018-10-25 (GMT)
+
+The sample [PHP upload handler](server/php/UploadHandler.php) before [v9.25.1](https://github.com/blueimp/jQuery-File-Upload/releases/tag/v9.25.1) did not validate file signatures before invoking [ImageMagick](https://www.imagemagick.org/) (via [Imagick](http://php.net/manual/en/book.imagick.php)).  
+Verifying those [magic bytes](https://en.wikipedia.org/wiki/List_of_file_signatures) mitigates potential vulnerabilities when handling input files other than `GIF/JPEG/PNG`.
+
+Please also configure ImageMagick to only enable the coders required for `GIF/JPEG/PNG` processing, e.g. with the sample [ImageMagick config](SECURITY.md#imagemagick-config).
+
+**Further information:**
+* Commit containing the mitigation: [fe44d34](https://github.com/blueimp/jQuery-File-Upload/commit/fe44d34be43be32c6b8d507932f318dababb25dd)
+* [ImageTragick](https://imagetragick.com/)
+* [CERT Vulnerability Note VU#332928](https://www.kb.cert.org/vuls/id/332928)
+* [ImageMagick CVE entries](https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=imagemagick)
+
+## Remote code execution vulnerability in the PHP component
+> Fixed: 2018-10-23 (GMT)
+
+The sample [PHP upload handler](server/php/UploadHandler.php) before [v9.24.1](https://github.com/blueimp/jQuery-File-Upload/releases/tag/v9.24.1) allowed to upload all file types by default.  
+This opens up a remote code execution vulnerability, unless the server is configured to not execute (PHP) files in the upload directory (`server/php/files`).  
+
+The provided [.htaccess](server/php/files/.htaccess) file includes instructions for Apache to disable script execution, however [.htaccess support](https://httpd.apache.org/docs/current/howto/htaccess.html) is disabled by default since Apache `v2.3.9` via [AllowOverride Directive](https://httpd.apache.org/docs/current/mod/core.html#allowoverride).
+
+**You are affected if you:**
+1. A) Uploaded jQuery File Upload < `v9.24.1` on a Webserver that executes files with `.php` as part of the file extension (e.g. "example.php.png"), e.g. Apache with `mod_php` enabled and the following directive (*not a recommended configuration*):
+    ```ApacheConf
+    AddHandler php5-script .php
+    ```
+   B) Uploaded jQuery File Upload < `v9.22.1` on a Webserver that executes files with the file extension `.php`, e.g. Apache with `mod_php` enabled and the following directive:
+    ```ApacheConf
+    <FilesMatch \.php$>
+      SetHandler application/x-httpd-php
+    </FilesMatch>
+    ```
+2. Did not actively configure your Webserver to not execute files in the upload directory (`server/php/files`).
+3. Are running Apache `v2.3.9+` with the default `AllowOverride` Directive set to `None` or another Webserver with no `.htaccess` support.
+
+**How to fix it:**
+1. Upgrade to the latest version of jQuery File Upload.
+2. Configure your Webserver to not execute files in the upload directory, e.g. with the [sample Apache configuration](SECURITY.md#apache-config)
+
+**Further information:**
+* Commits containing the security fix: [aeb47e5](https://github.com/blueimp/jQuery-File-Upload/commit/aeb47e51c67df8a504b7726595576c1c66b5dc2f), [ad4aefd](https://github.com/blueimp/jQuery-File-Upload/commit/ad4aefd96e4056deab6fea2690f0d8cf56bb2d7d)
+* [Full disclosure post on Hacker News](https://news.ycombinator.com/item?id=18267309).
+* [CVE-2018-9206](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-9206)
+* [OWASP - Unrestricted File Upload](https://www.owasp.org/index.php/Unrestricted_File_Upload)
+
+## Open redirect vulnerability in the GAE components
+> Fixed: 2015-06-12 (GMT)
+
+The sample Google App Engine upload handlers before v[9.10.1](https://github.com/blueimp/jQuery-File-Upload/releases/tag/9.10.1) accepted any URL as redirect target, making it possible to use the Webserver's domain for phishing attacks.
+
+**Further information:**
+* Commit containing the security fix: [f74d2a8](https://github.com/blueimp/jQuery-File-Upload/commit/f74d2a8c3e3b1e8e336678d2899facd5bcdb589f)
+* [OWASP - Unvalidated Redirects and Forwards Cheat Sheet](https://www.owasp.org/index.php/Unvalidated_Redirects_and_Forwards_Cheat_Sheet)
+
+## Cross-site scripting vulnerability in the Iframe Transport
+> Fixed: 2012-08-09 (GMT)
+
+The [redirect page](cors/result.html) for the [Iframe Transport](js/jquery.iframe-transport.js) before commit [4175032](https://github.com/blueimp/jQuery-File-Upload/commit/41750323a464e848856dc4c5c940663498beb74a) (*fixed in all tagged releases*) allowed executing arbitrary JavaScript in the context of the Webserver.
+
+**Further information:**
+* Commit containing the security fix: [4175032](https://github.com/blueimp/jQuery-File-Upload/commit/41750323a464e848856dc4c5c940663498beb74a)
+* [OWASP - Cross-site Scripting (XSS)](https://www.owasp.org/index.php/Cross-site_Scripting_(XSS))