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AUSCERT External Security Bulletin Redistribution
ESB-2021.1812
Joomla Security Announcements
31 May 2021
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AusCERT Security Bulletin Summary
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Product: Joomla! Core
Publisher: Joomla! project
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Cross-site Request Forgery — Remote with User Interaction
Cross-site Scripting — Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2021-26034 CVE-2021-26033 CVE-2021-26032
Original Bulletin:
http://feedproxy.google.com/~r/JoomlaSecurityNews/~3/RUt3VVO01jA/854-20210503-core-csrf-in-data-download-endpoints.html
http://feedproxy.google.com/~r/JoomlaSecurityNews/~3/x0DVT9dewcY/853-20210502-core-csrf-in-ajax-reordering-endpoint.html
http://feedproxy.google.com/~r/JoomlaSecurityNews/~3/56HM-ZEzH2w/852-20210501-core-adding-html-to-the-executable-block-list-of-mediahelper-canupload.html
Comment: This bulletin contains three (3) Joomla! project security
advisories.
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[20210503] – Core – CSRF in data download endpoints
Project: Joomla!
SubProject: CMS
Impact: Low
Severity: Low
Versions: 3.0.0 – 3.9.26
Exploit type: CSRF
Reported Date: 2021-05-07
Fixed Date: 2021-05-25
CVE Number: CVE-2021-26034
Description
A missing token check causes a CSRF vulnerability in data download
endpoints in com_banners and com_sysinfo.
Affected Installs
Joomla! CMS versions 3.0.0 – 3.9.26
Solution
Upgrade to version 3.9.27
Contact
The JSST at the Joomla! Security Centre.
Reported By: Phil Taylor
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[20210502] – Core – CSRF in AJAX reordering endpoint
Project: Joomla!
SubProject: CMS
Impact: Low
Severity: Low
Versions: 3.0.0 – 3.9.26
Exploit type: CSRF
Reported Date: 2021-05-07
Fixed Date: 2021-05-25
CVE Number: CVE-2021-26033
Description
A missing token check causes a CSRF vulnerability in the AJAX reordering
endpoint.
Affected Installs
Joomla! CMS versions 3.0.0 – 3.9.26
Solution
Upgrade to version 3.9.27
Contact
The JSST at the Joomla! Security Centre.
Reported By: Phil Taylor
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[20210501] – Core – Adding HTML to the executable block list of
MediaHelper::canUpload
Project: Joomla!
SubProject: CMS
Impact: Low
Severity: Low
Versions: 3.0.0 – 3.9.26
Exploit type: XSS
Reported Date: 2021-03-05
Fixed Date: 2021-05-25
CVE Number: CVE-2021-26032
Description
HTML was missing in the executable block list of MediaHelper::canUpload,
leading to XSS attack vectors.
Affected Installs
Joomla! CMS versions 3.0.0 – 3.9.26
Solution
Upgrade to version 3.9.27
Contact
The JSST at the Joomla! Security Centre.
Reported By: Adrian Tiron, Fortbridge
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You have received this e-mail bulletin as a result of your organisation’s
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NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT’s members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. 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.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author’s website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
https://www.auscert.org.au/bulletins/
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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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The post ESB-2021.1812 – [Win][UNIX/Linux] Joomla! Core: Multiple vulnerabilities appeared first on Malware Devil.
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