# CVE-2026-25737: Budibase Arbitrary File Upload Leading to Multiple Critical Vulnerabilities (SSRF, Stored XSS)

> Attackers can bypass UI-only file restrictions to upload malicious files, leading to SSRF and stored XSS in Budibase.

- **Severity:** High 8.9 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 9 Mar 2026
- **Updated:** 9 Mar 2026
- **Also known as:** GHSA-2hfr-343j-863r

## What is CVE-2026-25737?

CVE-2026-25737 is a high-severity vulnerability in budibase, published on 9 Mar 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

Budibase is a low code platform for creating internal tools, workflows, and admin panels. In 3.24.0 and earlier, an arbitrary file upload vulnerability exists even though file extension restrictions are configured. The restriction is enforced only at the UI level. An attacker can bypass these restrictions and upload malicious files.

Weakness: CWE-918 (Server-Side Request Forgery), CWE-79 (Improper Neutralization of Input During Web Page Generation), CWE-602 (Client-Side Enforcement of Server-Side Security)

## Which versions are affected by CVE-2026-25737?

It affects 1 product.


Products: Budibase Budibase.

## How do I fix CVE-2026-25737?

No fix has been published for CVE-2026-25737 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-25737 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-25737 exists.

## Other vulnerabilities in budibase

- [CVE-2026-54350](https://insights.sbomify.com/CVE-2026-54350/): Budibase: Anonymous NoSQL operator injection via published-app query templates (critical 10.0)
- [CVE-2026-27702](https://insights.sbomify.com/CVE-2026-27702/): Budibase Vulnerable to Remote Code Execution via Unsafe eval() in View Filter Map Function (Budibase Cloud) (critical 9.9)
- [CVE-2026-54352](https://insights.sbomify.com/CVE-2026-54352/): Budibase: Arbitrary file read by workspace-builder via PWA-zip symlink upload (critical 9.6)
- [CVE-2026-31818](https://insights.sbomify.com/CVE-2026-31818/): Budibase: Server-Side Request Forgery via REST Connector with Empty Default Blacklist (critical 9.6)
- [CVE-2026-30240](https://insights.sbomify.com/CVE-2026-30240/): Budibase PWA ZIP Upload Path Traversal Allows Reading Arbitrary Server Files Including All Environment Secrets (critical 9.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-25737 and fix it if it is affected.

What it is: CVE-2026-25737 is a high-severity vulnerability in budibase, published on 9 Mar 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-25737 exists.

Affected product: budibase. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-25737/ (Markdown: https://insights.sbomify.com/CVE-2026-25737/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-25737
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-25737
- OSV: https://osv.dev/vulnerability/CVE-2026-25737

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-25737/
Summaries are generated and may contain mistakes; the official description above is the record.