CVE-2026-31816

Published: Mar 09, 2026 Last Modified: Mar 13, 2026
ExploitDB:
Other exploit source:
Google Dorks:
CRITICAL 9,1
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: none

Description

AI Translation Available

Budibase is a low code platform for creating internal tools, workflows, and admin panels. In 3.31.4 and earlier, the Budibase server's authorized() middleware that protects every server-side API endpoint can be completely bypassed by appending a webhook path pattern to the query string of any request. The isWebhookEndpoint() function uses an unanchored regex that tests against ctx.request.url, which in Koa includes the full URL with query parameters. When the regex matches, the authorized() middleware immediately calls return next(), skipping all authentication, authorization, role checks, and CSRF protection. This means a completely unauthenticated, remote attacker can access any server-side API endpoint by simply appending ?/webhooks/trigger (or any webhook pattern variant) to the URL.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0010
Percentile
0,3th
Updated

EPSS Score Trend (Last 7 Days)

74

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Incomplete
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Confidentiality Access Control Other Integrity Non-Repudiation
Potential Impacts:
Read Application Data Bypass Protection Mechanism Alter Execution Logic Other Hide Activities
Applicable Platforms
All platforms may be affected
Likelihood of Exploit: High
View CWE Details
Application

Budibase by Budibase

Product Information
Vendor Budibase
Product Budibase
Version Range Affected
To 3.31.4 (inclusive)
cpe:2.3:a:budibase:budibase:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://github.com/Budibase/budibase/security/advisories/GH…
https://github.com/Budibase/budibase/security/advisories/GHSA-gw94-hprh-4wj8
https://github.com/Budibase/budibase/security/advisories/GH…
https://github.com/Budibase/budibase/security/advisories/GHSA-gw94-hprh-4wj8