CVE-2026-42239 — Budibase auth session cookies are set with httpOnly:false — any XSS can lead to full account takeover
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…
Published: 2026-05-07 · CVSS: 8.1 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7