Ivan Markovic has discovered a vulnerability in Vivvo CMS, which can be exploited by malicious people to conduct cross-site scripting attacks.
Input passed via the URL when handling a 404 Page Not Found error is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.
The vulnerability is confirmed in version 4.1.0 (free trial). Prior versions may also be affected.
Solution: Update to version 4.1.1.
Provided and/or discovered by: Ivan Markovic, Network Security Solutions
Original Advisory: Vivvo:
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Subject: Vivvo CMS "404 Page Not Found" Cross-Site Scripting Vulnerability
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