CVE-2026-35218

High

Description

Budibase is an open-source low-code platform. Prior to version 3.32.5, Budibase's Builder Command Palette renders entity names (tables, views, queries, automations) using Svelte's {@html} directive without any sanitization. An authenticated user with Builder access can create a table, automation, view, or query whose name contains an HTML payload (e.g. <img src=x onerror=alert(document.domain)>). When any Builder-role user in the same workspace opens the Command Palette (Ctrl+K), the payload executes in their browser, stealing their session cookie and enabling full account takeover. This issue has been patched in version 3.32.5.

SeverityHigh
CVSS8.7
Exploit probability—
ProductBudibase
PublishedApr 3, 2026
First seenApr 3, 2026

How to fix

Update
  • budibase budibase3.32.5 or later

Affected products

ProductAffected versionsFixed in
budibase budibasev < 3.32.53.32.5

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CVE-2026-35218 · Budibase · Dark Radar