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Category:   Application (Generic)  >   vtiger Vendors:
vtiger Bug in Users_Save_Action Class Lets Remote Authenticated Users Modify User Data on the Target System
SecurityTracker Alert ID:  1036485
SecurityTracker URL:
CVE Reference:   CVE-2016-4834   (Links to External Site)
Date:  Aug 1 2016
Impact:   Modification of system information, Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in vtiger. A remote authenticated user can modify user data on the target system.

A remote authenticated user can exploit a flaw in 'modules/Users/actions/Save.php' in the Users_Save_Action class to create user accounts and modify user accounts on the target system.

The original advisory is available at:

Hirota Kazuki of Mitsui Bussan Secure Directions, Inc. reported this vulnerability.

Impact:   A remote authenticated user can create and modify user accounts on the target system.
Solution:   The vendor has issued a source code fix, available at:

Vendor URL: (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   None.

 Source Message Contents

[Original Message Not Available for Viewing]

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