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Category:   Application (Forum/Board/Portal)  >   WordPress Vendors:   wordpress.org
WordPress Bugs Let Remote Users Conduct Cross-Site Scripting Attacks and Bypass Publishing Permission Checks
SecurityTracker Alert ID:  1033979
SecurityTracker URL:  http://securitytracker.com/id/1033979
CVE Reference:   CVE-2015-5714, CVE-2015-5715, CVE-2015-7989   (Links to External Site)
Updated:  Oct 28 2015
Original Entry Date:  Oct 27 2015
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  
Version(s): 4.3 and prior
Description:   Three vulnerabilities were reported in WordPress. A remote authenticated user can bypass security restrictions. 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. A remote user can cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the site running the WordPress 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 processing of shortcode tags is affected [CVE-2015-5714]. The user list table is affected [CVE-2015-7989].

A remote authenticated user can publish private sticky posts without the required permissions [CVE-2015-5715].

Shahar Tal and Netanel Rubin of Check Point reported two vulnerabilities. Ben Bidner of the WordPress security team reported one vulnerability.

Impact:   A remote authenticated user can publish private sticky posts without the required permissions.

A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the WordPress 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 fix (4.3.1) [in September 2015].

The vendor's advisory is available at:

https://wordpress.org/news/2015/09/wordpress-4-3-1/

Vendor URL:  wordpress.org/news/2015/09/wordpress-4-3-1/ (Links to External Site)
Cause:   Access control error, Input validation error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   None.


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