A vulnerability has been reported in MoinMoin, which can be exploited by malicious people to conduct script insertion attacks.
Input passed via the "User-Agent" HTTP header is not properly sanitised before being used. This can be exploited to insert arbitrary HTML and script code, which will be executed in a user's browser session in context of an affected site if malicious data is viewed.
The vulnerability is reported in versions prior to 1.9.7.
