Vbulletin: community verdicts
3 notable / known-exploited Vbulletin CVEs the community has triaged.
ⓘ Not an exhaustive list: we focus on the findings that matter (exploited / notable). For every Vbulletin CVE, see NVD ↗.
- CVE-2019-16759CRIT 9.8KEVEPSS 100%
vBulletin 5.x through 5.5.4 allows remote command execution via the widgetConfig[code] parameter in an ajax/render/widget_php routestring request.
- CVE-2020-17496CRIT 9.8KEVEPSS 88%
vBulletin 5.5.4 through 5.6.2 allows remote command execution via crafted subWidgets data in an ajax/render/widget_tabbedcontainer_tab_panel request. NOTE: this issue exists because of an incomplete fix for CVE-2019-16759.
- CVE-2025-46171MED 5.4EPSS 0%
vBulletin 3.8.7 is vulnerable to a denial-of-service condition via the misc.php?do=buddylist endpoint. If an authenticated user has a sufficiently large buddy list, processing the list can consume excessive memory, exhausting system resources and crashing the forum.