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TI-2026-27371 Aliases CVE-2026-35218

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

Priority HIGH 73CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00335 27th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed budibase (Budibase): 3.32.5

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Budibasebudibasebefore 3.32.53.32.5Patch availableCNA
  • budibase VendorBudibase Affected before 3.32.5 Fixed in 3.32.5 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:budibase:budibase:*:*:*:*:*:*:*:*before 3.32.5VulnerableBudibase
  • cpe:2.3:a:budibase:budibase:*:*:*:*:*:*:*:* Versions before 3.32.5 Vulnerable ·Budibase

Remediation

  • Fix · CNA budibase (Budibase) Fixed in 3.32.5

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-35218

References

Exploit 1

Patch 2

Other 1

  • TI-2026-39242 Budibase: Anonymous NoSQL operator injection via published-app query templates CVSS 3.1CRITICAL 10.0
  • TI-2026-24369 Budibase Universal Auth Bypass via Webhook Query Param Injection CVSS 3.1CRITICAL 9.1
  • TI-2026-39244 Budibase: Arbitrary file read by workspace-builder via PWA-zip symlink upload CVSS 3.1CRITICAL 9.6
  • TI-2026-39243 Budibase: Mass Assignment in Webhook Trigger Allows Cross-Workspace Automation Execution via appId Override CVSS 3.1CRITICAL 9.6
  • TI-2026-24371 Budibase: Server-Side Request Forgery via REST Connector with Empty Default Blacklist CVSS 3.1CRITICAL 9.9
  • TI-2026-23473 Budibase PWA ZIP Upload Path Traversal Allows Reading Arbitrary Server Files Including All Environment Secrets CVSS 3.1CRITICAL 9.6
See all 24 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences