vBulletin
Depends
Confidence: Medium
Only existing vBulletin communities with dedicated admins should keep buying it; a vB6 upgrade can beat a risky migration.
New check
Comparison
vBulletin vs XenForo
vBulletin and XenForo both land on Depends.
XenForo
Depends
Confidence: Medium
Buy if you run a serious, high-traffic discussion community and can self-host or pay for managed cloud.
| Compare | ||
|---|---|---|
| Verdict | Depends | Depends |
| Best for | Existing vBulletin 4/5 sites upgrading to vB6 | Large, long-running discussion communities |
| Who it's not for | New communities starting from scratch | Casual groups wanting free or cheap |
| Privacy | Poor record: multiple pre-auth RCE CVEs from 2020-2026, several actively exploited with public exploits; no security page found on site.⁹ | Multiple CVEs 2024-2026 (RCE, SSRF, auth bypass); self-hosters must patch promptly. |
| Support quality | Reddit users report unhelpful sales experiences | Only anecdotal community-forum evidence |
| Public sentiment | Long-time admins praise vBulletin's stability, while newer buyers report regret, clunkiness, and sales frustration.⁵ | Opinions split: many operators run it happily for years, while a vocal group calls the license overpriced and the modernization pace slow. |
| Biggest gotcha | Self-hosted means you own emergency patching; pre-auth RCEs exploited in the wild⁹ | First-year price isn't total price . renewals, hosting, add-ons stack up |
Pick vBulletin when
- Existing vBulletin 4/5 sites upgrading to vB6
- Large classic discussion forums with dedicated admins
- Hobbyist communities wanting self-hosted control
When vBulletin is not a fit
- New communities starting from scratch
- Teams without sysadmins or patch discipline
- Anyone handling security-sensitive member data
- Modern chat-first audiences (Discord/Slack)
Pick XenForo when
- Large, long-running discussion communities
- Hobbyist and enthusiast forums at scale
- Teams with PHP hosting and admin skills
- Paid membership-only communities
When XenForo is not a fit
- Casual groups wanting free or cheap
- Non-technical owners . self-hosting and patching required
- Anyone wanting modern chat-style community UX
- Zero-maintenance buyers unwilling to pay cloud prices
Sources
- vBulletin 6 . official sitevbulletin.comofficial
- Buy vBulletin 6vbulletin.comofficial
- vBulletin . Wikipediaen.wikipedia.orgofficial
- I regret buying VBulletin (6.0.7)xenforo.comreview
review
- Trustpilot . vBulletin reviewstrustpilot.comreview
- vBulletin vs Raklet (2026)raklet.comreview
- r/vbulletin . sales complaintsreddit.comreview
- Unit 42 . CVE-2020-17496 exploited in the wildunit42.paloaltonetworks.comsecurity
- BleepingComputer . critical pre-auth RCE with public exploitbleepingcomputer.comsecurity
security
- SentinelOne . CVE-2026-61511sentinelone.comsecurity
- Karmain Security . runMaths RCEkarmainsecurity.comsecurity
- vBulletin 5.7.5 hacked forum threadforum.vbulletin.comnews
- XenForo . official sitexenforo.comofficial
- Self-hosted XenForo licensesxenforo.comofficial