The localization functionality in TWiki before 5.1.3, and Foswiki 1.0.x through 1.0.10 and 1.1.x through 1.1.6, allows remote attackers to cause a denial of service (memory consumption) via a large integer in a %MAKETEXT% macro.
http://www.securityfocus.com/bid/56950
http://twiki.org/cgi-bin/view/Codev/SecurityAlert-CVE-2012-6329
http://sourceforge.net/mailarchive/message.php?msg_id=30219695