MFH: r371858

TWiki: fix CVE-2014-7236

This is remote Perl code execution via crafted GET variable "debugenableplugins",

http://twiki.org/cgi-bin/view/Codev/SecurityAlert-CVE-2014-7236

Security: 21ce1840-6107-11e4-9e84-0022156e8794
Approved by: ports-secteam (myself)