CVE-2026-54351
CVE-2026-54351 · Budibase: Mass Assignment in Webhook Trigger Allows Cross-Workspace Automation Execution via appId Override
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Budibase is an open-source low-code platform. Prior to 3.39.9, the webhook trigger endpoint in Budibase is publicly accessible and passes the full HTTP request body into automation execution parameters. A mass assignment vulnerability in externalTrigger() allows an attacker to overwrite the internal appId property by including it in the webhook POST body. When the automation is processed asynchronously (the default path for webhooks without a collect step), the worker executes the attacker-defined automation in the context of the victim's workspace, granting full read/write access to the victim's database. This vulnerability is fixed in 3.39.9.
CVSS 8.2 · High · EPSS 0.5% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
budibase
- Versions
- < 3.39.9: Affected
No fix published
@budibase/server npm
- Affected ranges
- SEMVER: < 3.39.9
Update to 3.39.9