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PHP iCalendar Multiple Cross-Site Scripting Vulnerabilities

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Release Date:  2006-12-28    Last Update:  2007-12-21    Views:  13,729

Secunia Advisory SA23499

Where:

From remote

Impact:

Cross Site Scripting

Solution Status:

Partial Fix

CVE Reference(s):

Description


Lostmon has discovered some vulnerabilities in PHP iCalendar, which can be exploited by malicious people to conduct cross-site scripting attacks.

1) Input passed to the "getdate" parameter in phpicalendar/day.php, phpicalendar/week.php, phpicalendar/month.php, phpicalendar/year.php, phpicalendar/search.php, phpicalendar/preferences.php, phpicalendar/print.php, and phpicalendar/rss/index.php 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 vulnerabilities are confirmed in versions 2.23rc1 and 2.24. Other versions may also be affected.

2) Input passed to the "cpath" parameter in phpicalendar/day.php, phpicalendar/week.php, phpicalendar/month.php, phpicalendar/year.php, and phpicalendar/search.php 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 vulnerabilities are confirmed in version 2.23rc1. Other versions may also be affected.

3) Input passed to the "query" parameter in phpicalendar/search.php 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 vulnerabilities are confirmed in version 2.23rc1. Other versions may also be affected.


Solution:
Update to version 2.24, which fixes vulnerabilities #2 and #3. Edit the source code to ensure the input is properly sanitised.

Provided and/or discovered by:
Lostmon

Additional information by Jose Luis Góngora Fernández.

Original Advisory:
http://lostmon.blogspot.com/2006/12/php-icalendar-multiple-variable-cross.html

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: PHP iCalendar Multiple Cross-Site Scripting Vulnerabilities

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