Security Advisory

CVE-2026-42239

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-05-07 18:49:59

Last updated 2026-05-07 19:39:45

Assigner GitHub_M

CVSS score 8.1

State PUBLISHED

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.

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