MyBB 1.4.7 is a security update to the MyBB 1.4 series. It fixes 1 high risk security vulnerability. We recommend everybody upgrades to this release immediately or patch their boards with the manual patching instructions below.
This vulnerability affects MyBB 1.4.6. MyBB 1.2 is not affected.
Thank you to Jesse Labrocca for alerting us of this vulnerability.
MyBB 1.4.6 to MyBB 1.4.7 Patch
This patch is only for users running MyBB 1.4.6. If you are running an older version of MyBB then please download MyBB 1.4.7 from the MyBB site and update to it.
Please download the attached ZIP archive and replace the files in your forum directory with those from the ZIP archive.
If you wish to manually patch your board please download “mybb_1406_patches.txt” and follow the instructions in that file.
Please Note: You do not have to run the upgrade script for this release.
Reporting MyBB security vulnerabilities
If you think you’ve found a vulnerability in MyBB, we advise you not to publicly post it on these forums or publicly release information about it elsewhere until we’ve had time to prepare and release a patch.
As always, you can send through security related messages on the MyBB website from the Contact Us page.
MyBB 1.2.14 Patch
MyBB 1.2 is not affected.
Please note all users of the 1.2.x series are urged to upgrade to the latest release of MyBB. (1.4.7) MyBB 1.2 is no longer being supported, though security updates for the MyBB 1.2 series will last through December 2009.
MyBB Blog 
PLEASE DO NOT POST SUPPORT REQUESTS IN THIS BLOG DISCUSSION THREAD – they will be ignored or deleted.
If you need help please post it at the General Support forum:
http://community.mybboard.net/forum-81.html
This comment thread is for feedback and questions regarding the release, and any clarifications.
Thanks for your cooperation!
Thanks, patched with no issues 🙂
Thanks for the update. I upgraded my forum. 🙂
Thanks for the update. Don’t forget to update the Latest News bar on the forum.
🙂 Thanks
thanks, patched.
May I point out again that if you are upgrading from 1.4.6 there is no upgrade script for this upgrade. You just need to upload the changed files or manually make the edits.
Upgraded without problems 🙂
Thanks mybb group
I will upgrade asap
Pingback: Bunnykins’ Blog » Blog Archive » MyBB 1.4.7 Released – Security Update
One Upgrade by day? =
Going to upgrade….
Went as smooth as a babies butt! Thanks myBB, you’re all the greatest. We’re leaving SMF in the dust!
Took less than one minute, thanks Jesse
Thank you very much,no problem.
Thanks for the update. Both files successfully overwritten, yay for ultra simple updating!
Cheers for the update MyBB. Simple and straight forward. Thanks!
MyBB…… You complete () Me 🙂
Thanks for the patch. Upgrade was super simple and without issues.
Keep up the great work !!
Cheers !
Many Thanks For The Update , went very smooth and with very little effort required 😀
Yes thank you , I updated my site. 😀
Completely updated
Thank you
Had this exploited and the whole forum was deleted… lesson definitely learned (and patch applied). Thank goodness for my awesome hosts who keep daily backups.
Upgraded ;D
Thanks, now my forum is going to be better secured ;D
My forum was attacked with an exploit while i was upgrading to the newer 1.4.8 version from 1.4.6 and another from 1.4.5, the attacker gains administrative access via an exploit which is now posted on milw0rm.com searched simply under “mybb”.
The patch most certainly fixed the problem.
since I like to know what happens, I downloaded the patch instruction and am applying it manually.
Seeing that you need to escape birthdayprivacy, it strikes me as odd that the same precaution would not apply to birthday, just a few lines above in user.php.
please ignore the last remark. looks like birthday is already sanitized at this point.