wordpress: Multiple vulnerabilities

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                         ZMCIRT Vulnerability Bulletin

                             ZMC-2021.04.22.0900
                     wordpress: Multiple vulnerabilities
                               21st April 2021

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Product:           wordpress
Publisher:         Debian
Operating System:  Debian GNU/Linux
                   UNIX variants (UNIX, Linux, OSX)
                   Windows
Impact/Access:     Access Confidential Data -- Existing Account
                   Reduced Security         -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2021-29450 CVE-2021-29447 

Original Bulletin: 
   http://www.debian.org/lts/security/2021/dla-2630

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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Debian LTS Advisory DLA-2630-1              debian-lts@lists.debian.org
https://www.debian.org/lts/security/                      Utkarsh Gupta
April 21, 2021                              https://wiki.debian.org/LTS
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Package        : wordpress
Version        : 4.7.20+dfsg-1+deb9u1
CVE ID         : CVE-2021-29447 CVE-2021-29450
Debian Bug     : 987065

CVE-2021-29447

    Wordpress is an open source CMS. A user with the ability to
    upload files (like an Author) can exploit an XML parsing issue
    in the Media Library leading to XXE attacks. This requires
    WordPress installation to be using PHP 8. Access to internal
    files is possible in a successful XXE attack.

CVE-2021-29450

    Wordpress is an open source CMS. One of the blocks in the
    WordPress editor can be exploited in a way that exposes
    password-protected posts and pages. This requires at least
    contributor privileges.

For Debian 9 stretch, these problems have been fixed in version
4.7.20+dfsg-1+deb9u1.

We recommend that you upgrade your wordpress packages.

For the detailed security status of wordpress please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/wordpress

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


 
ZMCIRT 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. ZMCERT
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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