Just one week after claiming that users of Microsoft\u2019s Internet Explorer 7 browser could be at risk\u00a0of an online attack, Danish security vendor Secunia is reporting a new bug in the browser.The bug allows hackers to place a fake Web address in one of the browser\u2019s pop-up Windows, and could be used to trick a victim into inadvertently downloading something from what appeared to be a trusted website. Secunia has described the flaw in an advisory, which can be found here.Based on its initial investigation, Microsoft believes there is "an issue," a spokesman with the company\u2019s public relations agency said in an e-mail.While the full URL of the webpage being displayed is present in the pop-up Window\u2019s address bar, the left part of this URL is not initially displayed, the spokesman said.That problem could allow an attacker to spoof a legitimate website, Secunia said.Microsoft\u2019s confirmation may come as a relief to Secunia, which reported another problem in IE 7 just hours after the browser was released. Microsoft said Secunia\u2019s report was "technically inaccurate," however, because the flaw lay in a component of Microsoft\u2019s Outlook Express e-mail client, which could be triggered by the browser. Microsoft\u2019s comment on this issue can be found here. Neither of the bugs is considered to be particularly critical. But coming so soon after IE 7\u2019s launch, they are somewhat of an embarrassment to Microsoft, which has made much of its focus on delivering secure software.Secunia was surprised that Microsoft called\u00a0its first report erroneous, given that the flaw can be triggered only through the browser, said Thomas Kristensen, Secunia\u2019s chief technology officer. "From a technical point of view, Microsoft might be right, but from a user\u2019s point of view, or an administrator\u2019s point of view, it doesn\u2019t really matter. IE is the vector," he said. "It was probably unnecessary to go out and try to blame Outlook in that way."-Robert McMillan, IDG News Service (San Francisco Bureau)Related Links:\n\n1st Microsoft IE7 Security Flaw Reported\n\nMicrosoft Internet Explorer Browser Released\n\nMozilla Firefox 2.0 Hits the Web\n\nMozilla Firefox Gaining Ground on Microsoft IEThis article is posted on our Microsoft Informer page.\u00a0For more news on the Redmond, Wash.-based powerhouse, keep checking in.Check out our CIO News Alerts and Tech Informer pages for more updated news coverage.