Tanmoy

This Plugin Will enable short code in WordPress sidebar Widget. By default, wordpress doesn’t support Short Code in Sidebar Widget. This Plugin can remove that restriction. 
Just Use a text widget for sidebar and use [short code] and ENJOY.
If you like this, Please rate it.

Plugin Name: Disable Media

This Plugin Will enable short code in WordPress sidebar Widget. By default, wordpress doesn't support Short Code in Sidebar Widget.

cgarvey

Sometimes you want to put the base URL (that of the blog, or that of the active template) in your content editor. Times when the template customising isn’t quite flexible enough. 
With this plugin you can use [url_base] to output the base URL of the blog (as set in your Settings). Or, you can use [url_template] to output the URL of the active template.
For example <code><img src="[url_base]/test.png /></code> in your editor might output <code><img src="http://localhost/wordpress/test.png" /></code> (if http://localhost/wordpress is what you have configured as your blog URL in Settings).
The supported short codes are as follows: 
* [url_base] – the configured blog URL (set in Settings). E.g. http://localhost/wordpress 
* [url_template] – the URL of the active template. E.g. http://localhost/wordpress/wp-content/themes/mytheme1
<h3>License</h3>
This plugin uses the GPLv3 license.

URL ShortCodes

URL ShortCodes plugin adds support for a basic short codes to use in your post/page editor that produce correct absolute URLs.

Plugin Name: Disable Media vs URL ShortCodes