# CVE-2025-52901: File Browser allows sensitive data to be transferred in URL

> Attackers can steal session tokens from URLs to gain full access to user accounts and sensitive files in File Browser.

- **Severity:** Medium 4.5 (`CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 30 Jun 2025
- **Updated:** 4 Aug 2025
- **Also known as:** GHSA-rmwh-g367-mj4x, GO-2025-3794

## What is CVE-2025-52901?

CVE-2025-52901 is a medium-severity vulnerability in filebrowser, published on 30 Jun 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename and edit files. Prior to version 2.33.9, access tokens are used as GET parameters. The JSON Web Token (JWT) which is used as a session identifier will get leaked to anyone having access to the URLs accessed by the user. This will give an attacker full access to a user's account and, in consequence, to all sensitive files the user has access to. This issue has been patched in version 2.33.9.

Weakness: CWE-598 (Use of HTTP Request With Sensitive Query String)

## Which versions are affected by CVE-2025-52901?

6 open source packages ship an affected version, including github.com/filebrowser/filebrowser and github.com/filebrowser/filebrowser/v2. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `github.com/filebrowser/filebrowser` | Go | All versions | None |
| `github.com/filebrowser/filebrowser` | Go | All versions to 1.11.0 | None |
| `github.com/filebrowser/filebrowser` | Go | All versions to 1.11.0 | None |
| `github.com/filebrowser/filebrowser/v2` | Go | All versions | 2.33.9 |
| `github.com/filebrowser/filebrowser/v2` | Go | All versions | 2.33.9 |
| `github.com/filebrowser/filebrowser/v2` | Go | All versions | 2.33.9 |

Products: Filebrowser Filebrowser.

## How do I fix CVE-2025-52901?

Upgrade to a fixed version.

## Is CVE-2025-52901 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-52901 exists.

## Other vulnerabilities in filebrowser

- [CVE-2026-32760](https://insights.sbomify.com/CVE-2026-32760/): File Browser Self Registration Grants Any User Admin Access When Default Permissions Include Admin (critical 10.0)
- [CVE-2026-29188](https://insights.sbomify.com/CVE-2026-29188/): File Browser: TUS Delete Endpoint Bypasses Delete Permission Check (critical 9.1)
- [CVE-2023-39612](https://insights.sbomify.com/CVE-2023-39612/): Cross-site scripting in n/a (critical 9.0)
- [CVE-2026-30934](https://insights.sbomify.com/CVE-2026-30934/): FileBrowser Quantum: Stored XSS in public share page via unsanitized share metadata (text/template misuse) (high 8.9)
- [CVE-2021-46398](https://insights.sbomify.com/CVE-2021-46398/): Cross-Site Request Forgery in Filebrowser (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-52901 and fix it if it is affected.

What it is: CVE-2025-52901 is a medium-severity vulnerability in filebrowser, published on 30 Jun 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-52901 exists.

Affected packages and fixed versions:
- github.com/filebrowser/filebrowser (Go): affected all versions; no fix listed
- github.com/filebrowser/filebrowser (Go): affected all versions up to 1.11.0; no fix listed
- github.com/filebrowser/filebrowser (Go): affected all versions up to 1.11.0; no fix listed
- github.com/filebrowser/filebrowser/v2 (Go): affected all versions; fixed in 2.33.9
- github.com/filebrowser/filebrowser/v2 (Go): affected all versions; fixed in 2.33.9
- github.com/filebrowser/filebrowser/v2 (Go): affected all versions; fixed in 2.33.9

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-2025-52901/ (Markdown: https://insights.sbomify.com/CVE-2025-52901/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-52901
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-52901
- OSV: https://osv.dev/vulnerability/CVE-2025-52901

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-52901/
Summaries are generated and may contain mistakes; the official description above is the record.