CVE-2026-48149: Budibase

High severity, CVSS 8.1. EPSS: 0.4% chance of exploitation in the next 30 days.

Budibase is an open-source low-code platform. Prior to 3.39.0, the Budibase Text component renders markdown by assigning marked.parse(markdown) straight to innerHTML with no sanitizer (packages/bbui/src/Markdown/MarkdownViewer.svelte:22). Any column a builder binds to a Text component in Markdown mode is a stored-XSS sink writable by every BASIC app user with WRITE on the underlying table. This vulnerability is fixed in 3.39.0.

Affected products

• Budibase Budibase: before 3.39.0 (fixed in 3.39.0)

Published 2026-05-27. Last modified 2026-06-17.