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Joomla! 3.6.4 is now available. This is a security release for the 3.x series of Joomla! which addresses three critical security vulnerabilities and a bug fix for two-factor authentication. We strongly recommend that you update your sites immediately.

This release only contains the security fixes and bug fix; no other changes have been made compared to the Joomla! 3.6.3 release.

Note: This announcement was revised on 27 October to include a third vulnerability confirmed after the release, please see this announcement for additional information.

What’s in 3.6.4

Version 3.6.4 is released to address two critical security issues and a bug regarding two-factor authentication.

Security Issues Fixed

  • High Priority – Core – Account Creation (affecting Joomla! 3.4.4 through 3.6.3) More information »
  • High Priority – Core – Elevated Privileges (affecting Joomla! 3.4.4 through 3.6.3) More information »
  • High Priority – Core – Account Modifications (affecting Joomla! 3.4.4 through 3.6.3) More information »

Bug Fixes

  • [#12497] Two-Factor Authentication encryption fix

Please see the documentation wiki for FAQ’s regarding the 3.6.4 release.