CVE-2026-72849
Budibase before 3.40.0 Identity Confusion via Chat-Link Handoff CSRF
- State
- Published
- Severity
- 8.7 High
- Published
- Aug 13, 2026
- Updated
- Oct 8, 2026
- Reserved
- Aug 10, 2026
Description
Budibase before 3.40.0 contains a cross-site request forgery vulnerability in the chat-link handoff endpoint that allows attackers to bind an external chat identity to a victim's account. Attackers can craft a phishing page that auto-submits a POST request with a leaked confirmation token to bind their chat identity to a victim user's account, enabling impersonation within agent operations and inheritance of victim permissions.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N | VulnCheck |
| 3.1 | 7.7 High | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N | VulnCheck |
Weaknesses
- CWE-352 Cross-Site Request Forgery (CSRF)
Affected Products
| Product | Versions |
|---|---|
serverbudibase |
|
References
- GitHub Security Advisory (GHSA-pvcr-8mvp-w8qr)vendor-advisory
- VulnCheck Advisory: Budibase before 3.40.0 Identity Confusion via Chat-Link Handoff CSRFthird-party-advisory
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