https://bugzilla.wikimedia.org/show_bug.cgi?id=30039

Happy-melon <happy.melon.w...@gmail.com> changed:

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--- Comment #1 from Happy-melon <happy.melon.w...@gmail.com> 2011-07-29 
02:20:24 UTC ---
In installations where ParserFunctions is installed but Variables is not,
$wgExtVariables is undefined, and so referencing it is a register_globals
vulnerability.

The ParserFunctions extension should not contain references to the Variables
extension in the same way that core code should not contain references to
extensions.  You should include hooks in ParserFunctions and hook functions in
Variables which handle the actual processing (and could happily be used by
other extensions).  It's fine to tweak the code flow in ParserFunctions to
ensure you can pass the right things to the hook.

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