The embedded script is automatically added to the bottom of the editor window when the slide share embed code is pasted in. It appears to re-add the script multiple times as images are uploaded and inserted or one switches between the visual and HTML displays of the WordPress editor. My latest such post, a summary of my Interop presentation on FCoE versus iSCSI, contained half a dozen copies of this script code!
Here’s a copy of the injected code:
I recommend switching to HTML mode and removing the script before pressing “Publish” whenever using SlideShare embeds. And I suggest reconsidering whether you want to use a service that does this sort of thing. I know I’m considering dumping SlideShare and deleting my account!