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[DCA-2011-0014] - Elxis CMS Cross Site Script
- DcLabs Security Research Group advises about the following vulnerability(ies):
- Elxis CMS
[Vendor Product Description]
- Elxis is powerful open source content management system (CMS)
released for free under the GNU/GPL license. It has unique
multi-lingual features, it follows W3C standards, it is secure,
flexible, easy to use, and modern. The development team, Elxis Team,
paid extra attention to the optimization of the CMS for the search
engines and this lead to high performance of all elxis powered web
sites and to high ranking in search engines results.
- Site: http://www.elxis.org/
- 11/22/2011 -> First Contact requesting security department contact;
- 11/22/2011 -> Vendor responded;
- 11/23/2011 -> Advisory sent to vendor;
- 11/23/2011 -> Vendor reply, fix the bug, release patch and
coordinate to publish.
- 12/05/2011 -> Published.
- Persistent/Stored Cross-Site Scripting (XSS) (The cms admin can edit
user contact info with XSS codes)
- Non-Persistent Cross-Site Scripting (XSS)
- Elxis 2009.3 aphrodite
[Bug Description and Proof of Concept]
- Exploiting the HTML-injection issue allows an attacker to execute
HTML and Java Script code in the remote user context to steal
cookie-based authentication credentials or to control how the site is
rendered to the user; other attacks may also be possible.
- Moreover, Cross Site Scripting (XSS) vulnerabilities are caused due
to lack of input validation. This allows malicious people to inject
arbitrary HTML and script code. More info at:
All flaws described here were discovered and researched by:
Ewerson Guimaraes aka Crash
DcLabs Security Research Group
crash (at) dclabs <dot> com <dot> br
[Patch(s) / Workaround]
DcLabs Security Research Group.
Ewerson Guimaraes (Crash)
DcLabs Security Team