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EUVD-2026-280156

2026-10-10T19:58:59.132139+00:00

EUVD-2026-280156

fkie_cve-2026-35214

2026-10-10T19:58:59.132170+00:00

Budibase is an open-source low-code platform. Prior to version 3.33.4, the plugin file upload endpoint (POST /api/plugin/upload) passes the user-supplied filename directly to createTempFolder() without sanitizing path traversal sequences. An attacker with Global Builder privileges can craft a multipart upload with a filename containing ../ to delete arbitrary directories via rmSync and write arbitrary files via tarball extraction to any filesystem path the Node.js process can access. This issue has been patched in version 3.33.4.

GHSA-2wfh-rcwf-wh23 — Budibase: Path traversal in plugin file upload enables arbitrary directory deletion and file write

2026-10-10T19:58:59.132203+00:00

Affected: npm: @budibase/server

## Summary

The plugin file upload endpoint (`POST /api/plugin/upload`) passes the user-supplied filename directly to `createTempFolder()` without sanitizing path traversal sequences. An attacker with Global Builder privileges can craft a multipart upload with a filename containing `../` to delete arbitrary directories via `rmSync` and write arbitrary files via tarball extraction to any filesystem path the Node.js process can access.

## Severity

- **Attack Vector:** Network — exploitable via the plugin upload HTTP API - **Attack Complexity:** Low — no special conditions; a single crafted multipart request suffices - **Privileges Required:** High — requires Global Builder role (`GLOBAL_BUILDER` permission) - **User Interaction:** None - **Scope:** Changed — the plugin upload feature is scoped to a temp directory, but the traversal escapes to the host filesystem - **Confidentiality Impact:** None — the vulnerability enables deletion and writing, not reading - **Integrity Impact:** High — attacker can delete arbitrary directories and write arbitrary files via tarball extraction - **Availability Impact:** High — recursive deletion of application or system directories causes denial of service

### Severity Rationale

Despite the real filesystem impact, severity is bounded by the requirement for Global Builder privileges (PR:H), which is the highest non-admin role in Budibase. In self-hosted deployments the Global Builder may already have server access, further reducing practic…

WID-SEC-W-2026-0990 — Budibase: Mehrere Schwachstellen

2026-10-10T19:58:59.132284+00:00

Ein Angreifer kann mehrere Schwachstellen in Budibase ausnutzen, um beliebigen Code auszuführen – sogar mit Root-Rechten –, sich erweiterte Rechte zu verschaffen – sogar Administratorrechte –, Cross-Site-Scripting-Angriffe durchzuführen, Daten zu manipulieren, einen Denial-of-Service-Zustand herbeizuführen oder vertrauliche Informationen offenzulegen.