Last weekend, I was reading some research papers available at Damballa website which are awesome without any doubt. I was surfing the website and to surprise, I found an XSS vulnerability in the website. Since, the Damballa provides anti malware solutions, XSS can be used for malicious purposes. Under responsible disclosure constraints, I contacted David Holmes of Damballa and revealed the issue. What makes a responsible disclosure interesting is the prompt reply from the vendor who is willing to patch the vulnerability without any complexities. The same happened with Damballa. They patched the bug right away. In addition, I had a good discussions with David Holmes why the issue persisted in the website.
I expect that every vendor should be prompt enough to patch the issue.
Be responsible in disclosing bugs.