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FlexCMS Cross-Site Request Forgery and Script Insertion Vulnerabilities

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Release Date:  2012-03-19    Last Update:  2012-10-01    Views:  1,202

Secunia Advisory SA48451

Where:

From remote

Impact:

Cross Site Scripting

Solution Status:

Unpatched

Software:

CVE Reference(s):

Description


Two vulnerabilities have been discovered in FlexCMS, which can be exploited by malicious users to conduct script insertion attacks and by malicious people to conduct cross-site request forgery attacks.

1) The application allows users to perform certain actions via HTTP requests without performing any validity checks to verify the requests. This can be exploited to e.g. change an administrator's password by tricking a logged in administrator into visiting a malicious web site.

2) Input passed via the "DisplayName" POST parameter to index.php/profile-edit-save when editing a user's profile 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 when the malicious data is being viewed.

The vulnerabilities are confirmed in version 3.2.1. Other versions may also be affected.


Solution:
Edit the source code to ensure that input is properly sanitised. Do not browse untrusted websites or follow untrusted links while logged in to the application.

Provided and/or discovered by:
1) Ivano Binetti
2) the_storm

Original Advisory:
Ivano Binetti:
http://ivanobinetti.blogspot.com/2012/03/flexcms-multiple-csrf-vulnerabilities.html

the_storm:
http://packetstormsecurity.org/files/110910/FlexCMS-3.2.1-Cross-Site-Scripting.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: FlexCMS Cross-Site Request Forgery and Script Insertion Vulnerabilities

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