12 Jun 2014
Twitter acquired the British TweetDeck back in 2011 to collate different feeds. The XSS vulnerability simply retweeted the script's code if seen with TweetDeck.
However users continued to report the attack. Later, they took down the app for further consideration.
"We've verified our security fix and have turned TweetDeck services back on for all users," TweetDeck said after their services went back on.
The attack affected some high-profile Twitter accounts and retweeted the script's code. BBC's Breaking News and Ed Miliband's Twitter accounts were also affected.