TITLE:
WebCal Cross-Site Scripting and Script Insertion Vulnerabilities

SECUNIA ADVISORY ID:
SA18017

VERIFY ADVISORY:
http://secunia.com/advisories/18017/

CRITICAL:
Moderately critical

IMPACT:
Cross Site Scripting

WHERE:
>From remote

SOFTWARE:
WebCal 3.x
http://secunia.com/product/6569/
WebCal 2.x
http://secunia.com/product/6570/
WebCal 1.x
http://secunia.com/product/6571/

DESCRIPTION:
Stan Bubrouski has reported some vulnerabilities in WebCal, which can
be exploited by malicious people to conduct cross-site scripting and
script insertion attacks.

1) Input passed to the "function", "year", and "date" parameters in
"webcal.cgi" isn't 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.

2) Input passed to various calendar entries isn't properly sanitised
before being used. This can be exploited to inject arbitrary HTML and
script code, which will be executed in a user's browser session in
context of an affected site when the malicious user data is viewed.

The vulnerabilities have been reported in versions 1.11 through 3.04.
Other versions may also be affected.

SOLUTION:
WebCal is not supported anymore. User another product.

PROVIDED AND/OR DISCOVERED BY:
Stan Bubrouski

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