More technical details here: http://www.tomanthony.co.uk/blog/google-xml-sitemap-auth-bypass-black-hat-seo-bug-bounty/ http://www.tomanthony.co.uk/blog/google-x

More technical details here: http://www.tomanthony.co.uk/blog/google-xml-sitemap-auth-bypass-black-hat-seo-bug-bounty/ http://www.tomanthony.co.uk/blog/google-xml-sitemap-auth-byp... (Tom works at my company)