Yahoo Toolbar Vulnerability Triggers Non-Exploitable XSS Payload on All Websites
Jun 11, 2014
Yahoo offers a web browser toolbar which includes apps for leading sites like Facebook, Yahoo! Mail, Weather and News. Yahoo Toolbar also known as Y! Toolbar is available for Internet Explorer, Firefox and Google Chrome web browsers. Yahoo Toolbar is one of the most popular and widely installed web browser add-on/extension. Many popular softwares like Java Update and thousands of free software including some Antivirus products promote Yahoo toolbar and bundled it into their installer files. A vulnerability has been reported in Yahoo Toolbar by Security Researcher Behrouz SAdeghipour , which causes cross site scripting flaw on popular websites like Flickr, Yahoo, Google, Pinterest, Youtube, Amazon, Twitter and many more. Yahoo Toolbar vulnerability triggers all previous non-exploitable XSS payloads on popular websites as shown below in multiple screenshots provided by Behrouz to The Hacker News . The vulnerability resides in the way Toolbar intercept...