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AUSCERT Security Bulletin
ASB-2013.0010
A number of security vulnerabilities have been identified in WordPress
25 January 2013
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AusCERT Security Bulletin Summary
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Product: WordPress
Operating System: UNIX variants (UNIX, Linux, OSX)
Windows
Impact/Access: Cross-site Request Forgery -- Remote with User Interaction
Cross-site Scripting -- Remote with User Interaction
Resolution: Patch/Upgrade
Member content until: Sunday, February 24 2013
OVERVIEW
A number of security vulnerabilities have been identified in WordPress
prior to version 3.5.1. [1]
IMPACT
The vendor has provided the following details regarding these
vulnerabilities:
"A server-side request forgery vulnerability and remote port
scanning using pingbacks. This vulnerability, which could
potentially be used to expose information and compromise a site,
affects all previous WordPress versions. This was fixed by the
WordPress security team. Wed like to thank security researchers
Gennady Kovshenin and Ryan Dewhurst for reviewing our work." [1]
"Two instances of cross-site scripting via shortcodes and post
content. These issues were discovered by Jon Cave of the WordPress
security team." [1]
"A cross-site scripting vulnerability in the external library
Plupload. Thanks to the Moxiecode team for working with us on this,
and for releasing Plupload 1.5.5 to address this issue." [1]
MITIGATION
The vendor recommends that administrators update to the latest
version of WordPress to correct these issues. [1]
REFERENCES
[1] WordPress 3.5.1 Maintenance and Security Release
http://wordpress.org/news/2013/01/wordpress-3-5-1/
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.
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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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