# CVE-2025-59116: User enumeration in Windu CMS

> Attackers can enumerate valid user accounts via login response differences, facilitating targeted brute-force attacks against Windu CMS.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 18 Nov 2025
- **Updated:** 5 Dec 2025
- **Also known as:** GHSA-2ffw-h4mh-jjh5

## What is CVE-2025-59116?

CVE-2025-59116 is a medium-severity vulnerability in JCD Windu CMS, published on 18 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Windu CMS is vulnerable to User Enumeration. This issue occurs during logon, where a difference in messages could allow an attacker to determine if the login is valid or not, enabling a brute force attack with valid logins.

Only version 4.1 was tested and confirmed as vulnerable.
This issue was fixed in version 4.1 build 2250.

Weakness: CWE-204 (Observable Response Discrepancy)

## Which versions are affected by CVE-2025-59116?

It affects 1 product.


Products: Windu Windu Cms.

## How do I fix CVE-2025-59116?

No fix has been published for CVE-2025-59116 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-59116 being exploited?

There is no known exploitation of CVE-2025-59116 in the wild and no public exploit code.

## Other vulnerabilities in JCD Windu CMS

- [CVE-2013-7473](https://insights.sbomify.com/CVE-2013-7473/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2025-59111](https://insights.sbomify.com/CVE-2025-59111/): Broken Access Control in Windu CMS (medium 6.9)
- [CVE-2025-59113](https://insights.sbomify.com/CVE-2025-59113/): Bruteforce Protection Bypass in Windu CMS (medium 6.9)
- [CVE-2025-59110](https://insights.sbomify.com/CVE-2025-59110/): Cross-Site Request Forgery in Windu CMS (medium 6.8)
- [CVE-2013-7474](https://insights.sbomify.com/CVE-2013-7474/): Cross-site scripting in n/a (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-59116 and fix it if it is affected.

What it is: CVE-2025-59116 is a medium-severity vulnerability in JCD Windu CMS, published on 18 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-59116 in the wild and no public exploit code.

Affected product: JCD Windu CMS. 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-2025-59116/ (Markdown: https://insights.sbomify.com/CVE-2025-59116/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-59116
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-59116
- OSV: https://osv.dev/vulnerability/CVE-2025-59116

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-59116/
Summaries are generated and may contain mistakes; the official description above is the record.