Recently, a new security flaw had been detected in Gmail. The key feature of Gmail had been affected due to this security flaw. The feature is termed to be as 'AMP4email' which is responsible for popping up of actionable content inside the inbox. Read more at timesofindia.indiatimes.com
Google claims that the issue has been now fixed which came to notice at the Google Vulnerability Reward Program on the 15th of August.