Budibase: Path traversal in plugin file upload enables arbitrary directory deletion and file write

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Summary

CVECVE-2026-35214
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-03 16:16:41 UTC
Updated2026-04-03 16:16:41 UTC
DescriptionBudibase 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.

Risk And Classification

Primary CVSS: v3.1 8.7 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H

Problem Types: CWE-22 | CWE-22 CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary8.7HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H
3.1CNADECLARED8.7HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Budibase Budibase affected < 3.33.4 Not specified

References

ReferenceSourceLinkTags
github.com/Budibase/budibase/pull/18240 [email protected] github.com
github.com/Budibase/budibase/security/advisories/GHSA-2wfh-rcwf-wh23 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
github.com/Budibase/budibase/releases/tag/3.33.4 [email protected] github.com
github.com/Budibase/budibase/commit/6344d06d703660fd05995e61d581593c2349... [email protected] github.com
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