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CVE-2026-48149

Budibase: Stored XSS in Text component: BASIC users execute JS in admin session via MarkdownViewer innerHTML + CDN+srcdoc CSP bypass PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
Budibase / budibaseaffected < 3.39.0

CWE

CWE-79

References

ADP enrichment

CISA-ADP

No English description supplied.