Description
Budibase is an open-source low-code platform. Prior to version 3.35.10, the budibase:auth cookie containing the JWT session token is set with httpOnly: false at packages/backend-core/src/utils/utils.ts:218. JavaScript can read this cookie via document.cookie. This means every XSS becomes a full account takeover — the attacker steals the JWT and has persistent access to the victim's account. The cookie also lacks secure: true (sent over plaintext HTTP) and sameSite attribute. This issue has been patched in version 3.35.10.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Budibase | budibase | < 3.35.10 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | @budibase/backend-core | < 3.35.10 | 3.35.10 | GHSA-4f9j-vr4p-642r |
Advisories 1
- WID-SEC-2026-1412 Budibase: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen und potenziell Privilegieneskalation BSI CERT-Bund (WID) · May 7, 2026