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#33600 Additional XSS protection for the usage of SVG files

Posted in ‘Admin Tools for Joomla! 4 & 5’
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Environment Information

Joomla! version
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PHP version
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Admin Tools version
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Latest post by nicholas on Friday, 28 August 2020 02:23 CDT

Friday, 28 August 2020 02:17 CDT

4creator

Hello,

I have updated Joomla to the latest version. Then, the following message was displayed.

Additional XSS protection for the usage of SVG files

Since 3.9.21 Joomla is shipped with an additional security rule in the default htaccess.txt. This rule will protect users of svg files from potential Cross-Site-Scripting (XSS) vulnerabilities.
The security team recommends to manually apply the necessary changes to any existing .htaccess file, as this file can not be updated automatically.

Changes for .htaccess

<FilesMatch "\.svg$">
  <IfModule mod_headers.c>
    Header always set Content-Security-Policy "script-src 'none'"
  </IfModule>
</FilesMatch>
 

Do I need to respond to this message if I am using Admin Tools? If I need to address this, please advise me.

 

Thanks

Friday, 28 August 2020 02:23 CDT

nicholas

Please refer to   https://www.akeeba.com/support/admin-tools/Ticket/33599:joomla-3-9-21-post-install-message-about-htaccess.html

Nicholas K. Dionysopoulos

Lead Developer and Director

🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
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