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Category:   Application (Generic)  >   MantisBT Vendors:   mantisbt.sourceforge.net
MantisBT Input Validation Flaw in 'view_user_page.php' and 'my_view_page.php' Lets Remote Users Conduct Cross-Site Scripting Attacks
SecurityTracker Alert ID:  1038278
SecurityTracker URL:  http://securitytracker.com/id/1038278
CVE Reference:   CVE-2017-7897   (Links to External Site)
Date:  Apr 18 2017
Impact:   Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  

Description:   A vulnerability was reported in MantisBT. A remote user can conduct cross-site scripting attacks.

The software does not properly filter HTML code from user-supplied input before displaying the input (subject to Content Security Policy settings). A remote user can create a specially crafted URL that, when loaded by a target user, will cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the site running the MantisBT software and will run in the security context of that site. As a result, the code will be able to access the target user's cookies (including authentication cookies), if any, associated with the site, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.

The 'view_user_page.php' and 'my_view_page.php' pages are affected.

Some demonstration exploit URLs are provided:

/view_user_page.php/"><script>alert(1)</script><x
/my_view_page.php/"><script>alert(1)</script><x

quantumpacket reported this vulnerability.

Impact:   A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the MantisBT software, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.
Solution:   The vendor has issued a source code fix, available at:

https://github.com/mantisbt/mantisbt/commit/a1c719313d61b07bbe8700005807b8195fdc32f1

The vendor advisory is available at:

http://www.mantisbt.org/bugs/view.php?id=22742

Vendor URL:  www.mantisbt.org/bugs/view.php?id=22742 (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   None.


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