
Developers at the open-source Mozilla Foundation have confirmed that the latest version of their Web browsers have a security flaw that could allow attackers to run existing programs on the Windows XP operating system. The flaw, known as the “shell” exploit, was publicized Wednesday on a security mailing list, along with a link to a fix for the problem. Updated versions of the affected software programs, which include the Mozilla, Firefox and Thunderbird browsers, have been released.