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Developer(s)MH Sub I, LLC d/b/a vBulletin
Initial release2000; 24 years ago (2000)
Stable release
6.0.0[1] Edit this on Wikidata / 2023-08-22; 10 months ago
Written inPHP
PlatformPHP, MySQL
TypeForum software
LicenseCommercial proprietary software[2]

vBulletin is a proprietary Internet forum software package sold by MH Sub I, LLC doing business as vBulletin (formerly Jelsoft Enterprises and vBulletin Solutions). It is written in PHP and uses a MariaDB or MySQL database server.[3] Similar products include XenForo, WordPress, Joomla, Drupal, MyBB, and phpBB.


vBulletin was first launched in 2000 by James Limm and John Percival. Its successor, vBulletin 2, was released in 2001. A third version was launched in 2004.

Internet Brands acquired the product from JelSoft in 2007.[4]

vBulletin 4 was released in late 2009. The StyleVars system was added to draw CSS variables directly from the vBulletin Template code.[5]

In July 2010, the BBC reported that there was a serious flaw in vBulletin software that allows anyone to easily access the database username and password.[6]

In October 2010, Internet Brands sued three former employees, just as their new competing software XenForo was to be launched,[4] as well as a second lawsuit in the United States claiming breach of contract, copyright infringement, and misappropriation of trade secrets.[7] In May 2011 it was announced that vBulletin had abandoned an attempt at preventing XenForo doing business,[8] and in 2013 the claims were dismissed.

vBulletin 5 was released in 2012.

In late 2017, a post by Technical Support Lead, Wayne Luke, confirmed that vBulletin 3 and vBulletin 4 were now considered to be "End of Life" software, with no further development of the series planned.[9][10][11]

See also[edit]


  1. ^ "Announcing the launch of vBulletin 6.0.0". Retrieved 23 August 2023.
  2. ^ "Software License Agreement for Downloaded Version". vBulletin. Retrieved 10 October 2018.
  3. ^ "vBulletin System Requirements". vBulletin Community Forum. Retrieved 2022-10-02.
  4. ^ a b Metz, Cade. "vBulletin sues ex-devs over 'from scratch' competitor". The Register. Retrieved 10 October 2018.
  5. ^ "vBulletin Skins". TalkTemplate.com. Retrieved 2012-02-29.
  6. ^ Fildes, Jonathan (2010-07-22). "BBC News". British Broadcasting Corporation. Retrieved 2012-01-17.
  7. ^ Metz, Cade (2010-11-04). "Forumware giant vBulletin sues ex-devs (again)". The Register. Retrieved 2010-11-11.
  8. ^ Metz, Cade. "vBulletin abandons bid for injunction against ex-devs". The Register. Retrieved 10 October 2018.
  9. ^ Fildes, Jonathan (2017-12-28). "vBulletin 3.X End of Life". vBulletin. Retrieved 2019-05-08.
  10. ^ Goodin, Dan (September 25, 2019). "High-severity vulnerability in vBulletin is being actively exploited". Ars Technica. Retrieved 2019-11-30.
  11. ^ "vBulletin 4.X Publishing Suite End of Life". vBulletin Community Forum. Retrieved 2021-12-07.