Description
Budibase Server before 3.45.0 contains an arbitrary file write vulnerability in the PWA icon upload endpoint that extracts user-supplied ZIP archives without proper symlink validation. Attackers with BUILDER role can craft a malicious ZIP with leaf symlink entries followed by duplicate file entries to write arbitrary files as root, enabling remote code execution.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| budibase | server | < 3.45.0 | 3.45.0 |
Advisories 1
- WID-SEC-2026-3286 Budibase: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 27, 2026
References
- GitHub Security Advisory (GHSA-37r6-5jxh-vm83) vendor-advisory
- VulnCheck Advisory: Budibase Server before 3.45.0 Arbitrary File Write via ZIP Symlink third-party-advisory