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Date: Sat, 21 Feb 2015 13:36:14 +0100
From: Steffen Rösemann <steffen.roesemann1986@...il.com>
To: oss-security@...ts.openwall.com
Subject: CVE-Request -- MyBB v. 1.8.3 -- Multiple stored XSS-vulnerabilities

Hi Steve, Josh, vendors, list.

The researchers adamziaja, Devilshakerz, DingjieYang and me found multiple
stored XSS-vulnerabilities in the administrative backend of CMS MyBB v.
1.8.3.

The stored XSS-vulnerabilities can be found in different modules in the
following locations of a common MyBB installation:

======================
Module "config-attachment_types"
======================

via form-field MIME-type:

http://{TARGET}/admin/index.php?module=config-attachment_types&action=add

executed in: e.g. http://
{TARGET}/admin/index.php?module=config-attachment_types

===============
Module "config-mycode"
===============

via form fields "title" and "short description":

http://{TARGET}/admin/index.php?module=config-mycode&action=add

executed in: e.g. http://{TARGET}/admin/index.php?module=config-mycode

===================
Module "forum-management"
===================

via form field "title":

http://{TARGET}/admin/index.php?module=forum-management&action=add

executed in: e.g. http://{TARGET}/admin/index.php?module=forum

==============
Module "user-groups"
==============

via form fields "title" and/or "short description":

http://{TARGET}/admin/index.php?module=user-groups&action=add

executed in: e.g. http://{TARGET}/admin/index.php?module=user-groups

================
Module "style-templates"
================

via form field "name":

http://{TARGET}/admin/index.php?module=style-templates&action=add_set

executed in: e.g. http://{TARGET}/admin/index.php?module=style-templates

====================================
Module "style-templates" in action "add_template_group"
====================================

via form field "title":

http://
{TARGET}/admin/index.php?module=style-templates&action=add_template_group

executed in: e.g. http://
{TARGET}/admin/index.php?module=style-templates&sid={TEMPLATES_NUMERIC_ID}

=============
Module "tool-tasks"
=============

via form field "title":

http://{TARGET}/admin/index.php?module=tools-tasks&action=add

executed in: e.g. http://{TARGET}/admin/index.php?module=tools-adminlog

=================
Module "config-post_icons"
=================

via form field "name":

http://{TARGET}/admin/index.php?module=config-post_icons&action=add

executed in: e.g. http://{TARGET}/admin/index.php?module=tools-adminlog

=============
Module "user-titles"
=============

via form field "title to assign":

http://{TARGET}/admin/index.php?module=user-titles&action=add

executed in: e.g. http://{TARGET}/admin/index.php?module=tools-adminlog

================
Module "config-banning"
================

via form field "username":

http://{TARGET}/admin/index.php?module=config-banning&type=usernames

executed in: e.g. http://{TARGET}/admin/index.php?module=tools-adminlog

Can I have a CVE-ID/CVE-IDs for these issues?

Thank you very much.

Greetings from Germany.

Steffen Rösemann

[1] http://www.mybb.com
[2] http://sroesemann.blogspot.de/2015/02/sroeadv-2015-15.html
[3] http://www.mybb.com/get-involved/security/
[4]
http://blog.mybb.com/2015/02/15/mybb-1-8-4-released-feature-update-security-maintenance-release/
[5] http://seclists.org/fulldisclosure/2015/Feb/80

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