CVE-2026-48149highCWE-79

CVE-2026-48149: high-severity vulnerability in budibase

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

Published · Updated

Follow this CVE+ Monitor budibase

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 8.1epss 0.2%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Affected products
Budibase · budibase
Related CVEs — budibase

In the same product, most dangerous first.

CVE-2026-31816CRITICALBudibase Universal Auth Bypass via Webhook Query Param InjectionEPSS 16.7%CVE-2026-35216CRITICALBudibase: Unauthenticated Remote Code Execution via Webhook Trigger and Bash Automation StepEPSS 10.9%CVE-2023-29010MEDIUMBudiBase Server-Side Request Forgery vulnerabilityEPSS 0.6%CVE-2026-25040MEDIUMBudibase Vulnerable to Privilege Escalation via API Abuse – Creator Can Invite Users with Admin/Any RoleEPSS 0.6%CVE-2026-73300CRITICALBudibase: SQL Injection via `multipleStatements: true`EPSS 0.6%CVE-2026-35214HIGHBudibase: Path traversal in plugin file upload enables arbitrary directory deletion and file writeEPSS 0.6%