Manual:$wgAllowJavaUploads

Files and file uploads: $wgAllowJavaUploads
Allow Java archive uploads.
Introduced in version:1.18.0 (r82783)
Removed in version:still in use
Allowed values:(boolean)
Default value:false

DetailsEdit

Allow Java archive uploads. This is not recommended for public wikis since a maliciously-constructed applet running on the same domain as the wiki can steal the user's cookies.