# CVE-2025-11436: JhumanJ OpnForm answer unrestricted upload

> Attackers can upload unrestricted files to the /answer endpoint, potentially leading to code execution or security bypass.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Oct 2025
- **Updated:** 8 Oct 2025
- **Also known as:** GHSA-v7mp-273w-5h6j

## What is CVE-2025-11436?

CVE-2025-11436 is a medium-severity vulnerability in JhumanJ OpnForm, published on 8 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability was detected in JhumanJ OpnForm up to 1.9.3. Affected by this issue is some unknown functionality of the file /answer. The manipulation results in unrestricted upload. The attack can be launched remotely. The exploit is now public and may be used. The patch is identified as 95c3e23856465d202e6aec10bdb6ee0688b5305a. It is advisable to implement a patch to correct this issue.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type), CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2025-11436?

It affects 1 product.


Products: Jhumanj Opnform.

## How do I fix CVE-2025-11436?

No fix has been published for CVE-2025-11436 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-11436 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-11436 exists.

## Other vulnerabilities in JhumanJ OpnForm

- [CVE-2025-11441](https://insights.sbomify.com/CVE-2025-11441/): JhumanJ OpnForm HTTP Header excessive authentication (medium 6.3)
- [CVE-2025-11443](https://insights.sbomify.com/CVE-2025-11443/): JhumanJ OpnForm Forgotten Password email information exposure (medium 6.3)
- [CVE-2025-11435](https://insights.sbomify.com/CVE-2025-11435/): JhumanJ OpnForm submissions cross site scripting (medium 5.3)
- [CVE-2025-11438](https://insights.sbomify.com/CVE-2025-11438/): JhumanJ OpnForm API Endpoint custom-domains authorization (medium 5.3)
- [CVE-2025-11439](https://insights.sbomify.com/CVE-2025-11439/): JhumanJ OpnForm integrations authorization (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-11436 and fix it if it is affected.

What it is: CVE-2025-11436 is a medium-severity vulnerability in JhumanJ OpnForm, published on 8 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-11436 exists.

Affected product: JhumanJ OpnForm. 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-2025-11436/ (Markdown: https://insights.sbomify.com/CVE-2025-11436/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-11436
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-11436
- OSV: https://osv.dev/vulnerability/CVE-2025-11436

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-11436/
Summaries are generated and may contain mistakes; the official description above is the record.