Movable Type v6.5.3 - Security Fix and Many Other Improvements

Six Apart did an excellent job with v6.5.x and just launched v6.5.3, a product that introduces many improvements as well as a security fix.

Upgrading to Movable Type v6.5.3


  • Log the enabling / disabling of a plugin.
  • Add some L10N phases for European languages.
  • Add heights to multiple-line text custom fields.
  • Log failure of sign-in.
  • Add SVG to ThemeStaticFileExtensions as a default value.
  • Improve performance of mt-feed.cgi


  • Data API is disabled at new installation and creating a new website and blog. No change for the current settings.


  • No size set for the Assets which is not supported by MT when importing from WordPress.
  • Remove the template of Technorati Search.
  • The initial value is set to 85 for JPEG image quality.
  • Fix links to



  • [XSS] Fix not to execute scripts in WYSIWYG editor.


  • Fix not to set the format of multiple-line text in ContentType to "None".
  • Fix to suppress warn 'redefined' in WXRImporter with XML::SAX modules other than XML::SAX::PurePerl.
  • Fix not to slow Data API with a huge version value.
  • Fix not to show an error at sign-out in Rainier theme.
  • Fix our company name in some themes
  • Fix to parse Markdown correctly.
  • Fix not to react to pressing "Enter" in IE11.
  • Fix to update entrymodifiedon at editing statuses in list view.
  • Fix to use SSL configuration parameters when "SSLVerifyNone 1".
  • Fix to use SSL configuration parameters in SMTP when "SSLVerifyNone 1" or "SMTPSSLVerifyNone 1".
  • Fix not to send an empty email when EmailAddressMain is not set
  • Fix to control whether Page is published or not via page endpoint of Data API.
  • Fix to suppress warn 'used only once: possible typo.'
  • Fix the format of blockquote in editor.
  • Fix the message when XML::Parser is not installed.
  • Fix not to register comments with invalid external authenticators.
  • Fix error at loading non-existed modifiers.
  • Fix to suppress warn at DebugMode 1
  • Fix to update MTReleaseNumber correctly.

Please give it a try at:

- username: demo
- password: testthis


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