# CVE-2025-14390: Video Merchant <= 5.0.4 - Cross-Site Request Forgery to Arbitrary File Upload

> Unauthenticated attackers can upload arbitrary files leading to remote code execution by tricking administrators into clicking a link.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 10 Dec 2025
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-4cm3-mrv7-6hxx

## What is CVE-2025-14390?

CVE-2025-14390 is a high-severity vulnerability in videomerchant Video Merchant, published on 10 Dec 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

The Video Merchant plugin for WordPress is vulnerable to Cross-Site Request Forgery in version <= 5.0.4. This is due to missing or incorrect nonce validation on the video_merchant_add_video_file() function. This makes it possible for unauthenticated attackers to upload arbitrary files that make remote code execution possible via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type)

## Which versions are affected by CVE-2025-14390?


## How do I fix CVE-2025-14390?

No fix has been published for CVE-2025-14390 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-14390 being exploited?

There is no known exploitation of CVE-2025-14390 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-14390 and fix it if it is affected.

What it is: CVE-2025-14390 is a high-severity vulnerability in videomerchant Video Merchant, published on 10 Dec 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2025-14390 in the wild and no public exploit code.

Affected product: videomerchant Video Merchant. 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-2025-14390/ (Markdown: https://insights.sbomify.com/CVE-2025-14390/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-14390
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-14390
- OSV: https://osv.dev/vulnerability/CVE-2025-14390

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-14390/
Summaries are generated and may contain mistakes; the official description above is the record.