# CVE-2025-4011: Redmine Custom Query cross site scripting

> Remote attackers can inject malicious scripts via the Custom Query Name field in Redmine, potentially leading to session hijacking or code execution.

- **Severity:** Medium 5.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N`)
- **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:** Yes
- **Published:** 28 Apr 2025
- **Updated:** 28 Apr 2025
- **Also known as:** DEBIAN-CVE-2025-4011, GHSA-hhw5-9q3f-7w82, UBUNTU-CVE-2025-4011

## What is CVE-2025-4011?

CVE-2025-4011 is a medium-severity cross-site scripting vulnerability in Redmine, published on 28 Apr 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

A vulnerability has been found in Redmine 6.0.0/6.0.1/6.0.2/6.0.3 and classified as problematic. This vulnerability affects unknown code of the component Custom Query Handler. The manipulation of the argument Name leads to cross site scripting. The attack can be initiated remotely. Upgrading to version 6.0.4 is able to address this issue. It is recommended to upgrade the affected component.

Weakness: CWE-94 (Improper Control of Generation of Code), CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2025-4011?


## How do I fix CVE-2025-4011?

Upgrade to a fixed version.

## Is CVE-2025-4011 being exploited?

There is no known exploitation of CVE-2025-4011 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-4011 and fix it if it is affected.

What it is: CVE-2025-4011 is a medium-severity cross-site scripting vulnerability in Redmine, published on 28 Apr 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2025-4011 in the wild and no public exploit code.

Affected product: Redmine. 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-2025-4011/ (Markdown: https://insights.sbomify.com/CVE-2025-4011/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-4011
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-4011
- OSV: https://osv.dev/vulnerability/CVE-2025-4011

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-4011/
Summaries are generated and may contain mistakes; the official description above is the record.