An open redirect vulnerability has been discovered on Yahoo.com. The problem appears to have been rectified as of this writing. This would be a great tool for someone to spread malicious software or to use in a phishing campaign in an attempt to trick the user into clicking a link that may seem perfectly harmless. This is a perfect example of why using a vulnerability scanning tool is never enough to ensure that your site is secure. You need to have smart people kicking the tires, says Wang Wang.”]
Source: https://www.csoonline.com/article/2136232/open-redirect-on-yahoo.html