vBulletin 5.x through 5.5.4 allows remote command execution via the widgetConfig[code] parameter in an ajax/render/widget_php routestring request.
CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.
vBulletin 5.x through 5.5.4 allows remote command execution via the widgetConfig[code] parameter in an ajax/render/widget_php routestring request.
Confirm exposure before applying a vendor-supported change.
Apply updates per vendor instructions.
Due date: 2022.05.03Confirm that vBulletin and an affected version are present.
Combine exploitation signals with asset exposure and business criticality.
Follow the vendor advisory or supported update path and preserve rollback options.
Recheck the version, service health, access paths, and relevant logs.
