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                         AUSCERT Security Bulletin

                               ASB-2012.0150
                           Joomla 2.5.7 Released
                              1 November 2012

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:              Joomla
Operating System:     UNIX variants (UNIX, Linux, OSX)
                      Windows
Impact/Access:        Cross-site Scripting -- Remote with User Interaction
Resolution:           Patch/Upgrade
CVE Names:            CVE-2012-4531  
Member content until: Saturday, December  1 2012

OVERVIEW

        Multiple vulnerabilities have been fixed in Joomla! 2.5.7.


IMPACT

        The vendor has provided the following information:
        
        "Inadequate escaping of output leads to XSS vulnerability." [1]
        
        "Inadequate escaping of output leads to XSS vulnerability in language 
        switcher module." [2]


MITIGATION

        These vulnerabilities are fixed in Joomla! 2.5.7. [3]


REFERENCES

        [1] [20120901] - Core - XSS Vulnerability
            http://developer.joomla.org/security/news/539-20120901-core-xss-vulnerability

        [2] [20120902] - Core - XSS Vulnerability
            http://developer.joomla.org/security/news/540-20120902-core-xss-vulnerability

        [3] Joomla 2.5.7 Released
            http://www.joomla.org/announcements/release-news/5463-joomla-2-5-7-released.html

AusCERT has made every effort to ensure that the information contained
in this document is accurate.  However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
follow or act on information or advice contained in this security bulletin is
the responsibility of each user or organisation, and should be considered in
accordance with your organisation's site policies and procedures. AusCERT
takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours 
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
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