Warning:

This extension may pose serious security and/or privacy risks! Users with access to this extension can view the preferences of any other user, which is usually considered private information. While this extension does not give access to account passwords, it does give access to private data such as real names, email addresses, and other information that could be easily abused. Therefore, do NOT grant access to any user unless they are 100% trustworthy. It is recommended that access be restricted to bureaucrats or higher groups. We are not responsible for any security or privacy leaks.

MediaWiki extensions manual

LookupUser Release status: stableCategory:Stable extensions
Implementation	Special page Category:Special page extensions
Description	Allows to retrieve information about a user such as email address and ID
Author(s)	Tim Starlingtalk
Latest version	1.5.2 (2018-07-14)
MediaWiki	1.25+Category:Extensions with manual MediaWiki version
Database changes	No
License	GNU General Public License 2.0 or later
Download	Download extension Git [?]: Browse repository (Phabricator · GitHub) Gerrit code review Git commit log Download source tarball Category:Extensions in Wikimedia version control
Added rights lookupuser Category:Extensions which add rights
Hooks used ContributionsToolLinks Category:ContributionsToolLinks extensions
Quarterly downloads	11 (Ranked 96th)
Translate the LookupUser extension if it is available at translatewiki.net
Issues	Open tasks · Report a bug

The LookupUser extension allows to retrieve information about a user such as email address, user ID and the user preferences, i.e. everything that the user has specified in their preferences.

This extension also displays the last time a user either made a login, or any edit, which it lists as the "User record last touched:" time and date element of its log. (This will be displayed as UTC even if you've set a custom time zone/the server's time zone is different.)

Installation

• Download and move the extracted LookupUser folder to your extensions/ directory.
  Developers and code contributors should install the extension from Git instead, using:cd extensions/
git clone https://gerrit.wikimedia.org/r/mediawiki/extensions/LookupUser
• Add the following code at the bottom of your LocalSettings.php file:

  wfLoadExtension( 'LookupUser' );
  // Who can use Special:LookupUser?
  // If you want that sysops can use it:
  #$wgGroupPermissions['*']['lookupuser'] = false;
  #$wgGroupPermissions['sysop']['lookupuser'] = true;
  
  // Or, do you want a new user group for this.
  // (users with the 'userrights' right can add users to this group only bureaucrats by default)
  $wgGroupPermissions['*']['lookupuser'] = false;
  $wgGroupPermissions['lookupuser']['lookupuser'] = true;
  

• Done – Navigate to Special:Version on your wiki to verify that the extension is successfully installed.

Usage

The extension is accessed via the "Special:LookupUser" page.

This extension is included in the following wiki farms/hosts and/or packages: Canasta Category:Extensions included in Canasta ShoutWiki Category:Extensions included in ShoutWiki This is not an authoritative list. Some wiki farms/hosts and/or packages may contain this extension even if they are not listed here. Always check with your wiki farms/hosts or bundle to confirm.