“The apple itunes and appstore is taking the device cell name of the buying users. Remote attackers can manipulate the name value by an exchange with script code (special chars). After that the attacker buys any article in the appstore or itunes-store.” The security advisory reads.
“During that procedure the internal appstore service takes the device value and does encode it with wrong conditions. The seller account context runs since the error with the injected script code occurs and gets this way re-implemented to the invoice. Thus results in an application-side script code execution in the invoice of apple.
Researchers said the vulnerability can be exploited by remote attackers with low privilege web-application user account with low or medium user interaction.