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TITLE:
PHP Event Calendar Add Event Script Insertion Vulnerabilities

SECUNIA ADVISORY ID:
SA21895

VERIFY ADVISORY:
http://secunia.com/advisories/21895/

CRITICAL:
Less critical

IMPACT:
Cross Site Scripting

WHERE:
>From remote

SOFTWARE:
PHP Event Calendar 1.x
http://secunia.com/product/7964/

DESCRIPTION:
NR Nandini has reported some vulnerabilities in PHP Event Calendar,
which can be exploited by certain malicious users to conduct script
insertion attacks.

Input passed to the "ti", "bi", and "cbgi" parameters in
cl_files/index.php when adding an event 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.

Successful exploitation requires privileges to add events.

The vulnerabilities have been reported in version 1.5.1. Other
versions may also be affected.

SOLUTION:
Edit the source code to ensure that input is properly sanitised.

NOTE: The vulnerabilities have been inadequately fixed by only
filtering the "script" tag.

PROVIDED AND/OR DISCOVERED BY:
NR Nandini, OS2A

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About:
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vulnerabilities.

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Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
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