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Joomla aiContactSafe 2.0.19 Extension Cross-Site Scripting (XSS) vulnerability

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FOREGROUND SECURITY, SECURITY ADVISORY 2013-001
– Original release date: July 10, 2013
– Discovered by: Adam Willard (Software Security Analyst at Foreground Security)
– Verified by: Jose Carlos de Arriba (Pentest Team Manager at Foreground Security)
– Contact: (awillard (at) foregroundsecurity (dot) com)
– Severity: 4.3/10 (Base CVSS Score)
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I. VULNERABILITY
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Algis Info aiContactSafe Extension 2.0.19 (latest) Cross-Site Scripting (XSS) vulnerability – (prior versions have not been checked but could be vulnerable too).

II. BACKGROUND
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Algis Info aiContactSafe is a native Joomla component developed by Algis Info.
You can use it to place a complex contact form on your web page.
Here are some of the facilities that it can offer:
– custom fields
– captcha
– custom text related to the contact informations
– multilingual support ( through Joomfish )
– SEFthrough Artio JoomSEF or sh404SEF

III. DESCRIPTION
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Algis Info aicontactsafe 2.0.19 (latest) Extension presents a Cross-Site Scripting (XSS) vulnerability in the “url” due to an insufficient input/output sanitization.
A malicious user could perform session hijacking or phishing attacks.

IV. PROOF OF CONCEPT
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(This section has been removed per vendor request).

V. BUSINESS IMPACT
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An attacker could perform session hijacking or phishing attacks.

VI. SYSTEMS AFFECTED
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Joomla Extension, AlgisInfo com_aicontactsafe_2_0_19_stable Extension (prior versions have not been checked but could be vulnerable too).

VII. SOLUTION
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Fixed on 2.0.21.stable version release.

VIII. REFERENCES
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http://www.algisinfo.com/
http://www.foregroundsecurity.com/

IX. CREDITS
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This vulnerability has been discovered by Adam Willard (awillard (at) foregroundsecurity (dot) com), verification and release coordination by Jose Carlos de Arriba (jcarriba (at) foregroundsecurity (dot) com).

X. REVISION HISTORY
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– July 10, 2013: Initial release.

XI. DISCLOSURE TIMELINE
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April 2, 2013: Vulnerability discovered by Adam Willard.
April 3, 2013: Vulnerability verified by Jose Carlos de Arriba.
April 15: AlgisInfo aiContactSafe Author contacted by email.
April 15: Response from author and security advisory sent to him.
April 16: Vulnerability fixed on 2.0.21.stable version release
July 10: Security advisory released

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

Foreground Security



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