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AUSCERT Security Bulletin
ASB-2017.0076
WordPress 4.7.5 Security and Maintenance Release
18 May 2017
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AusCERT Security Bulletin Summary
---------------------------------
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
Provide Misleading Information -- Remote with User Interaction
Resolution: Patch/Upgrade
Member content until: Saturday, June 17 2017
OVERVIEW
Multiple vulnerabilities have been identified in WordPress prior to
version 4.7.5. [1]
IMPACT
The vendor has provided the following details regarding the
vulnerability:
"Insufficient redirect validation in the HTTP class. Reported by
Ronni Skansing.
Improper handling of post meta data values in the XML-RPC API.
Reported by Sam Thomas.
Lack of capability checks for post meta data in the XML-RPC API.
Reported by Ben Bidner of the WordPress Security Team.
A Cross Site Request Forgery (CRSF) vulnerability was discovered
in the filesystem credentials dialog. Reported by Yorick Koster.
A cross-site scripting (XSS) vulnerability was discovered when
attempting to upload very large files. Reported by Ronni Skansing.
A cross-site scripting (XSS) vulnerability was discovered
related to the Customizer. Reported by Weston Ruter of the WordPress
Security Team. " [1]
MITIGATION
The vendor strongly encourages users to update to the latest
version. [1]
REFERENCES
[1] WordPress 4.7.5 Security and Maintenance Release
https://wordpress.org/news/2017/05/wordpress-4-7-5/
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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