[pkg-horde] [announce] [SECURITY] Horde Groupware Webmail Edition 5.2.16 (final)

[Jan Schneider]

The Horde Team is pleased to announce the final release of the Horde Groupware
Webmail Edition version 5.2.16.

Horde Groupware Webmail Edition is a free, enterprise ready, browser based
communication suite. Users can read, send and organize email messages  
with four
different webmail interfaces and manage and share calendars, contacts, tasks,
notes, files, and bookmarks with the standards compliant components from the
Horde Project.

For upgrading instructions, please see
http://www.horde.org/apps/webmail/docs/UPGRADING

For detailed installation and configuration instructions, please see
http://www.horde.org/apps/webmail/docs/INSTALL

Thanks to Liuzhu for reporting the XSS vulnerability via data:text/html
content.

Thanks to Dawid Gounski for reporting the missing CSRF token in the
configuration form and the XSS vulnerability with SVG images via Beyond
Security's SecuriTeam Secure Disclosure program.

Thanks to Florian Köllich for reporting the XSS vulnerability and open URL
redirection in the portal forms.

The major changes compared to the Horde Groupware Webmail Edition version
5.2.15 are:

Security fixes:
     * Fixed an XSS vulnerability via data:text/html content of form action and
       xlink attributes.
     * Added CSRF protection tokens to the portal layout forms.
     * Fixed an open URL redirection in the portal layout forms.
     * Enabled CSRF tokens in the configuration forms.
     * Don't render SVG images in the browser to avoid XSS attacks

General changes:
     * Several bugfixes and improvements.

Filter changes:
     * Fixed creating of new spam folders.

Tasks changes:
     * Fixed sorting of recurring tasks by due date.

The full list of changes can be viewed here:

https://github.com/horde/horde/blob/1d381d1e236daaa5e18aacbcb2e61d7bc30be239/bundles/webmail/docs/CHANGES

Have fun!

The Horde Team.
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