By Dan Goodin in San Francisco
1st June 2009
It's been a busy week for high-profile web vulnerabilities, with
discoveries of careless bugs on the sites of three British companies.
Online banking sites for HSBC and Barclays Group and the website for The
Telegraph were caught with their pants down, as hackers published
screenshots and other details that showed all three were susceptible to
attacks that could compromise the security of people who visit the
The XSS, or cross-site scripting, errors on HSBC were still present on a
variety of HSBC sites on Monday afternoon California time, some 48 hours
after the XSSed blog first reported them. The bugs allowed attackers to
user into clicking on a specially manipulated web address.
"Malicious people can exploit these bugs to conduct phishing attacks and
infect bank customers and site visitors with crimeware," the blog
The accompanying screenshot shows a browser that is pointed at an HSBC
site for Hong Kong users. But because of flaws in the way the site was
designed, the XSSed researchers were able to superimpose their own
banner and article into the browser window.
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