Stored XSS Vulnerability in Budibase Low-Code Platform
CVE-2026-46426

7.6HIGH

Key Information:

Vendor

Budibase

Status
Budibase
Vendor
CVE Published:
27 May 2026

What is CVE-2026-46426?

Budibase, an open-source low-code platform, has a vulnerability that allows authenticated users to upload dangerous files via the file upload endpoint. The lack of effective content restrictions means that SVG files containing inline tags and other executable web content can be uploaded without proper checks. This results in stored persistent XSS, where malicious scripts are executed in the browsers of all application end users upon accessing the files. The vulnerability has been addressed in version 3.38.2.

Affected Version(s)

budibase < 3.38.2

References

https://github.com/Budibase/budibase/security/advisories/...
x_refsource_CONFIRM
https://github.com/Budibase/budibase/releases/tag/3.38.2
x_refsource_MISC

CVSS V3.1

Score:
7.6
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.