Yahoo MailのXSS脆弱性

下記の記事が出ている。

　XSS bug in Yahoo Mail could have let attackers take over email accounts
　Naked Security: 21 January, 2016
　https://nakedsecurity.sophos.com/2016/01/21/xss-bug-in-yahoo-mail-could-have-let-attackers-take-over-email-accounts/

　Yahoo! Mail! Had! Nasty! XSS! Bug!
　Register: 19 January, 2016
　http://www.theregister.co.uk/2016/01/19/finnishii_bugii_hunterii_netsii_10kii_bountyii_
fromii_yahooii/

　Yahoo Patches XSS Mail Bug
　CCM: January 21, 2016
　http://ccm.net/news/27092-yahoo-patches-xss-mail-bug