Lostmon has discovered a vulnerability in Jax Calendar, which can be exploited by malicious people to conduct cross-site scripting attacks.
Input passed to the "language", "gmt_ofs" and "view" parameters isn't properly sanitised before being returned to users. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of a vulnerable site.
The vulnerability has been confirmed in version 1.34 and have also been reported in version 1.33. Other versions may also be affected.
Solution: Edit the source code to ensure that input is properly sanitised.
Provided and/or discovered by: Lostmon
Original Advisory: http://lostmon.blogspot.com/2005/08/jax-php-scripts-multiple.html
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