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AUSCERT External Security Bulletin Redistribution
wordpress security update
12 February 2019
AusCERT Security Bulletin Summary
Operating System: Debian GNU/Linux 8
Impact/Access: Delete Arbitrary Files -- Existing Account
Cross-site Scripting -- Remote with User Interaction
Denial of Service -- Existing Account
Access Confidential Data -- Remote/Unauthenticated
Provide Misleading Information -- Existing Account
CVE Names: CVE-2018-20153 CVE-2018-20152 CVE-2018-20151
CVE-2018-20150 CVE-2018-20149 CVE-2018-20148
Comment: This advisory references vulnerabilities in products which run on
platforms other than Debian. It is recommended that administrators
running wordpress check for an updated version of the software for
their operating system.
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Package : wordpress
Version : 4.1.25+dfsg-1+deb8u1
CVE ID : CVE-2018-20147 CVE-2018-20148 CVE-2018-20149
CVE-2018-20150 CVE-2018-20151 CVE-2018-20152
Debian Bug : 916403
Authors could modify metadata to bypass intended restrictions on
Contributors could conduct PHP object injection attacks via crafted
metadata in a wp.getMediaItem XMLRPC call. This is caused by
mishandling of serialized data at phar:// URLs in the
wp_get_attachment_thumb_file function in wp-includes/post.php.
When the Apache HTTP Server is used, authors could upload crafted
files that bypass intended MIME type restrictions, leading to XSS,
as demonstrated by a .jpg file without JPEG data.
Crafted URLs could trigger XSS for certain use cases involving
The user-activation page could be read by a search engine's web
crawler if an unusual configuration were chosen. The search engine
could then index and display a user's e-mail address and (rarely)
the password that was generated by default.
Authors could bypass intended restrictions on post types via crafted
Contributors could modify new comments made by users with greater
privileges, possibly causing XSS.
For Debian 8 "Jessie", these problems have been fixed in version
We recommend that you upgrade your wordpress packages.
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
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