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.
Metrics
Affected Vendors & Products
References
History
Thu, 07 May 2026 20:45:00 +0000
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| First Time appeared |
Budibase
Budibase budibase |
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| Vendors & Products |
Budibase
Budibase budibase |
Thu, 07 May 2026 20:15:00 +0000
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| Metrics |
ssvc
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Thu, 07 May 2026 19:30:00 +0000
| Type | Values Removed | Values Added |
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| 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. | |
| Title | Budibase auth session cookies are set with httpOnly:false — any XSS can lead to full account takeover | |
| Weaknesses | CWE-1004 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-05-07T18:49:59.180Z
Updated: 2026-05-07T19:39:45.605Z
Reserved: 2026-04-25T05:37:12.118Z
Link: CVE-2026-42239
Updated: 2026-05-07T19:39:41.873Z
Status : Awaiting Analysis
Published: 2026-05-07T20:16:44.097
Modified: 2026-05-07T20:35:58.117
Link: CVE-2026-42239
No data.
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