Currently we are not aware of any vendor-supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: vuldb@securityfocus.com .
source: http://www.securityfocus.com/bid/5849/info
A vulnerability has been reported for Py-Membres 3.1 that allows remote attackers to obtain administrative privileges on vulnerable installations.
Reportedly, Py-Membres does not fully check some URI parameters. Thus it is possible for an attacker to manipulate URI parameters and log into the system as an arbitrary user without the need for passwords.
http://[target]/index.php?pymembs=admin