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CVE-2026-42239

Budibase auth session cookies are set with httpOnly:false — any XSS can lead to full account takeover PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
Budibase / budibaseaffected < 3.35.10

CWE

CWE-1004

References

ADP enrichment

CISA-ADP

No English description supplied.