Having a wiki plugin that is not readable by apache in the plugin directory causes an infinite loop when the user attempts to edit a page, because edit page tries to load a list of plugins and descriptions in the help.
tiki-editpage.php calls wikilib.list_plugins(), calls get_plugin_description(), which doesn't check open status after fopen().
Patch for v2.2 release attached.
Thanks fixed in 2.3
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