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Budibase EUVDEUVD-2026-58502

| CVE-2026-72851 CRITICAL
SQL Injection (CWE-89)
2026-08-13 disclosure@vulncheck.com GHSA-x389-5jg5-q6vh
9.0
CVSS 4.0 · Vendor: vulncheck
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Severity by source

Vendor (vulncheck) PRIMARY
9.0 CRITICAL
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
9.0 CRITICAL

Webhook endpoint is unauthenticated (PR:N) but requires a pre-existing EXECUTE_QUERY webhook automation (AC:H); injected SQL runs on a separate connected datasource, so scope changes (S:C) with full C/I/A impact.

3.1 AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
4.0 AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Primary rating from Vendor (vulncheck).

CVSS VectorVendor: vulncheck

CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

3
Patch available
Aug 13, 2026 - 23:04 EUVD
Analysis Generated
Aug 13, 2026 - 22:34 vuln.today
CVE Published
Aug 13, 2026 - 22:17 cve.org
CRITICAL 9.0

DescriptionCVE.org

Budibase before 3.40.0 contains an unauthenticated SQL injection vulnerability in webhook-triggered automations with EXECUTE_QUERY steps. Attackers can POST attacker-controlled JSON to the webhook trigger endpoint to inject SQL payloads that execute with builder-configured database credentials, enabling data exfiltration, modification, and persistence in connected datasources like Snowflake.

AnalysisAI

SQL injection in Budibase's webhook-triggered automation engine (versions before 3.40.0) lets remote attackers reach EXECUTE_QUERY automation steps and inject SQL that runs with the builder-configured datasource credentials. Because the webhook trigger endpoint accepts attacker-controlled JSON without authentication, an attacker can exfiltrate, modify, or persist data in connected backends such as Snowflake. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Discover exposed Budibase webhook endpoint
Delivery
POST crafted JSON with SQL payload
Exploit
Injection reaches EXECUTE_QUERY step
Execution
Query runs with datasource credentials
Impact
Exfiltrate or modify connected database data

Vulnerability AssessmentAI

Exploitation Exploitation requires that the target Budibase instance (before 3.40.0) has a published automation whose trigger is a webhook AND whose steps include an EXECUTE_QUERY action bound to a datasource with stored credentials - that automation configuration IS the prerequisite. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 base score is 9.0 (Critical), driven by high impact to both the vulnerable Budibase system and the subsequent connected datasource (VC/VI/VA and SC/SI/SA all High), reflecting full read/write/persistence on the backing database. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker enumerates a target Budibase deployment and discovers a published webhook automation endpoint. Without authenticating, they POST crafted JSON whose values embed SQL metacharacters that reach the downstream EXECUTE_QUERY step, causing injected SQL to run under the builder's Snowflake credentials to dump or alter table data. …
Remediation Vendor-released patch: upgrade to Budibase 3.40.0 or later, which remediates the SQL injection in webhook-triggered EXECUTE_QUERY automations; see GHSA-x7h8-ww3q-xv7c (https://github.com/Budibase/budibase/security/advisories/GHSA-x7h8-ww3q-xv7c). … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, inventory all Budibase deployments and their version numbers, prioritizing instances connected to Snowflake or other production databases; establish a communication channel for potential incident response. …

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EUVD-2026-58502 vulnerability details – vuln.today

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