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Reflected XSS in WonderCMS <= v0.9.8

2016-11-22 07:35
=============================================
MGC ALERT 2016-006
- Original release date: Nov 16, 2016
- Last revised: Nov 21, 2016
- Discovered by: Manuel Garcia Cardenas
- Severity: 4,8/10 (CVSS Base Score)
=============================================

I. VULNERABILITY
-------------------------
Reflected XSS in WonderCMS <= v0.9.8

II. BACKGROUND
-------------------------
WonderCMS is a simple, small & secure flat file CMS.

III. DESCRIPTION
-------------------------
Has been detected a reflected XSS vulnerability in WonderCMS, that allows
the execution of arbitrary HTML/script code to be executed in the context
of the victim user's browser.

The code injection is done through the parameter "page" in the page
"editinplace.php".

IV. PROOF OF CONCEPT
-------------------------
Malicious Request:
/wonder/js/editinplace.php?page=<XSS injection>

Example:
/wonder/js/editinplace.php?page=<script>alert(1)</script>

V. BUSINESS IMPACT
-------------------------
An attacker can execute arbitrary HTML or script code in a targeted user's
browser, this can leverage to steal sensitive information as user
credentials, personal data, etc.

VI. SYSTEMS AFFECTED
-------------------------
WonderCMS <= v0.9.8

VII. SOLUTION
-------------------------
Update to 0.9.9 version

VIII. REFERENCES
-------------------------
https://wondercms.com/

IX. CREDITS
-------------------------
This vulnerability has been discovered and reported
by Manuel Garcia Cardenas (advidsec (at) gmail (dot) com).

X. REVISION HISTORY
-------------------------
Nov 16, 2016 1: Initial release
Nov 21, 2016 2: Last revision

XI. DISCLOSURE TIMELINE
-------------------------
Nov 16, 2016 1: Vulnerability acquired by Manuel Garcia Cardenas
Nov 16, 2016 2: Send to vendor
Nov 20, 2016 3: New version that includes patched code
https://wondercms.com/forum/viewtopic.php?f=8&t=761
Nov 21, 2016 4: Sent to lists

XII. LEGAL NOTICES
-------------------------
The information contained within this advisory is supplied "as-is" with no
warranties or guarantees of fitness of use or otherwise.

XIII. ABOUT
-------------------------
Manuel Garcia Cardenas
Pentester

_______________________________________________
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https://nmap.org/mailman/listinfo/fulldisclosure
Web Archives & RSS: http://seclists.org/fulldisclosure/


Source: 421/voN/6102/erusolcsidlluf/gro.stsilces

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