CVE-2026-25040
📋 TL;DR
This vulnerability allows Creator-level users in Budibase to bypass UI restrictions and invite new users with any role (including Admin) via API manipulation. This leads to privilege escalation and potential complete workspace/organization takeover. All Budibase deployments up to version 3.26.3 are affected.
💻 Affected Systems
- Budibase
📦 What is this software?
Budibase by Budibase
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the Budibase workspace/organization with full administrative control, data exfiltration, and potential lateral movement to connected systems.
Likely Case
Unauthorized users gain elevated privileges, create backdoor admin accounts, and access sensitive internal tools and data.
If Mitigated
Limited impact if strict network segmentation, API monitoring, and least privilege principles are enforced.
🎯 Exploit Status
Exploitation requires Creator-level credentials but involves simple API request manipulation. Proof-of-concept code is publicly available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: None available as of publication
Vendor Advisory: https://github.com/Budibase/budibase/security/advisories/GHSA-4wfw-r86x-qxrm
Restart Required: No
Instructions:
No official patch available. Monitor Budibase security advisories for updates and apply immediately when released.
🔧 Temporary Workarounds
Restrict API Access
allImplement network controls to restrict access to Budibase API endpoints from unauthorized users/systems.
Monitor User Invitations
allImplement logging and alerting for all user invitation activities, especially those creating Admin accounts.
🧯 If You Can't Patch
- Temporarily disable user invitation functionality for Creator roles
- Implement strict API rate limiting and anomaly detection for invitation endpoints
🔍 How to Verify
Check if Vulnerable:
Check Budibase version. If version is 3.26.3 or earlier, the system is vulnerable.Check Version:
Check Budibase admin panel or deployment configuration for version information.Verify Fix Applied:
When patch is available, verify version is higher than 3.26.3 and test that Creator users cannot invite users with elevated roles.📡 Detection & Monitoring
Log Indicators:
- API requests to user invitation endpoints from Creator accounts
- User creation events with Admin/Creator roles
- Multiple user invitations in short timeframes
Network Indicators:
- Unusual API traffic patterns to /api/global/users/invite or similar endpoints
- POST requests with role parameter manipulation
SIEM Query:
source="budibase" AND (event="user_invite" OR endpoint="/api/global/users/invite") AND (role="admin" OR role="creator")