CVE-2026-35214

Description

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.

CVSS Vector

References

• https://github.com/Budibase/budibase/commit/6344d06d703660fd05995e61d581593c2349c879
• https://github.com/Budibase/budibase/pull/18240
• https://github.com/Budibase/budibase/releases/tag/3.33.4
• https://github.com/Budibase/budibase/security/advisories/GHSA-2wfh-rcwf-wh23
• https://github.com/Budibase/budibase/security/advisories/GHSA-2wfh-rcwf-wh23