cvedb.io
CVE-2026-42239
HIGH · CVSS 8.1
EPSS exploitation probability: 0%
Published 2026-05-07T20:16:44.097 · Last modified 2026-06-17T10:47:33.977

Summary

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

budibase — budibase

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.