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AUSCERT Security Bulletin
ASB-2015.0039
A critical vulnerability has been corrected in Wordpress
28 April 2015
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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 Scripting -- Remote with User Interaction
Resolution: Patch/Upgrade
Member content until: Thursday, May 28 2015
OVERVIEW
A critical vulnerability has been identified in WordPress prior to
version 4.2.1. [1]
IMPACT
The vendor has provided the following details regarding the
vulnerability:
"A few hours ago, the WordPress team was made aware of a cross-site
scripting vulnerability, which could enable commenters to compromise
a site". [1]
MITIGATION
The vendor strongly urges users to update to the latest version
immediately. [1]
The vendor also states:
"WordPress 4.2.1 has begun to roll out as an automatic background
update, for sites that support those".[1]
REFERENCES
[1] WordPress 4.2.1 Security Release
https://wordpress.org/news/2015/04/wordpress-4-2-1/
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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