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HIGHCVE-2026-35218Published Modified CNA GitHub_M

CVE-2026-35218: Budibase: Stored XSS via unsanitized entity names rendered with {@html} in Builder Command Palette

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.

Metrics

CVSS v3.1
8.7
Severity
HIGH
Fixed in
Affected Products
1
Affected packages
  • Budibase / budibase
    < 3.32.5
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N