[原文]Cross-site scripting vulnerability in Infopop Ultimate Bulletin Board (UBB) before 5.47e allows remote attackers to steal user cookies via an [IMG] tag that references an about: URL with an onerror field.
Ultimate Bulletin Board contains a flaw that allows a remote cross-site scripting (XSS) attack. This flaw exists because the application does not validate the [IMG] tags upon submission to any cgi script. This may allow a user to create a specially crafted URL that would execute arbitrary script code in a user's browser within the trust relationship between their browser and the server, allowing an attacker to craft a URL that uses image tags to access cookies.
Upgrade to version 5.47e or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.