There "might" be a vulnerability with this, I have had many URL hits in the logs of many servers where hackers are scanning for those who self host this file, I am an ISP hosting many site's and this URL keeps turning up, even when the donations code is not used in said site's, they don't seem very educated but here is the URL "/www.paypalobjects.com/donate/sdk/donate-sdk.js" Just thought I would give you the heads up as I can't find any documentation to back this up, yet! Note the root slash!
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