Risk: Informational
Experts say that Web designers who are making very old mistakes are potentially letting hackers hijack visitors to their own sites.
According to Symantec the number of sites vulnerable to cross site scripting (XSS) almost doubled during the last half of 2007. Attackers are looking for loopholes in website code because this usually requires little work in order to steal login credentials.
Symantec says that XSS attacks are becoming more popular because more and more website designers are writing their own bits of code so visitors can get more out of a site and, as a result, hackers are exploiting this and running attacks.