xwiki/xwiki-platform — pull request #96 by tdelafosse (2013-04-17 12:18:00+00:00)
Title: XWIKI-5338 : Registration possible without captcha

To fix this issue, I check the user captcha answer (if one is required) in registerAction. So it is no more possible to register a new user by posting directly to registerAction if the captcha feature is enbled.