Is this vulnerability remotely exploitable over the internet?

Yes, if the Budibase instance is exposed and an attacker can obtain or register an account with builder privileges. Exploitation is performed entirely via HTTP requests to the affected endpoint using crafted ZIP uploads, without needing shell access to the server.

What level of access does an attacker need to exploit this issue?

The attacker must be an authenticated Budibase user with builder-level permissions capable of invoking the PWA ZIP processing endpoint (`POST /api/pwa/process-zip`). No lower-privilege or unauthenticated access is sufficient under normal configurations, but privilege misconfigurations may widen the set of potential attackers.

What is the safest general fix pattern for developers?

The robust fix is to decouple file operations from user-supplied paths: restrict all file reads to a predefined directory, normalize and validate computed paths, and use allowlists of acceptable filenames instead of trusting arbitrary path segments from manifests or ZIPs. Additionally, remove any code that reads files based solely on client-controlled values without strict boundary checks.

Severity:

CRITICAL RISK

(9.6)

Path Traversal (CWE-22) in Budibase PWA ZIP Processing Endpoint

CVE-2026-30240

Published:

Mar 9, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

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May 6, 2026

Vulnerability Type

Category:

Path Traversal / Arbitrary File Read

CWE:

CWE-22;CWE-73

Impact:

Exposure of Secrets and Complete Platform Compromise

Severity:

CRITICAL RISK

(9.6)

CVSS Version:

3.1

Vulnerability Type

Category:

Path Traversal / Arbitrary File Read

CWE:

CWE-22;CWE-73

Impact:

Exposure of Secrets and Complete Platform Compromise

Severity:

CRITICAL RISK

(9.6)

CVSS Version:

3.1

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Path Traversal (CWE-22) in Budibase PWA ZIP Processing Endpoint

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(8.6)

Server-Side Request Forgery (CWE-918) in OpenClaw Zalo Plugin sendPhoto

HIGH RISK

HIGH

(8.8)

Authorization Bypass (CWE-863) in OpenClaw Matrix Room Control Commands

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Ship clean & secure code faster

Ship clean & secure code faster

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