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Yahoo developer feature can be used to steal user data
Attackers can read emails, contacts and other private data from the accounts of Yahoo users who visit a malicious page by abusing a feature present on Yahoo's Developer Network website, according to an independent security researcher.
A limited version of the attack was presented on Sunday at the DefCamp security conference in Bucharest, Romania, by a Romanian Web application bug hunter named Sergiu Dragos Bogdan.
In his presentation, the researcher showed how the Web-based YQL (Yahoo Query Language) console, available on the developer.yahoo.com website, can be abused by attackers to execute YQL commands on behalf of authenticated Yahoo users who visit malicious websites.