Squirrelmail has fixed some XSS issues in SVN:
Hanno also linked to fixes for other bugs.
Fixes available in upstream SVNWhiteboard:
Updated squirellmail packages to fix a small XSS-security issue.
Updated packages in core/updates_testing:
MGA6-32 MATE on IBM Thinkpad R50e
No installation issues, apart from the remark there are no new language rpm's?
Followed bug 22793 Comment 6 and my own in bug 23366, apart from the fact that there is no "mail" group on this laptop, so I just skipped the chgrp command.
Dovecot was already on this laptop, so after restarting httpd, I have been able to send, receive, answer and receiving the answer between the two user.
OK for me.
No installation issues in 64-bit. Sending this one on its way.
Validating. Suggested advisory in Comment 1.
An update for this issue has been pushed to the Mageia Updates repository.