# CVE-2025-4012: playeduxyz PlayEdu 开源培训系统 User Avatar create server-side request forgery

> Attackers can exploit a server-side request forgery vulnerability in the user avatar creation endpoint to access internal resources.

- **Severity:** Medium 5.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 28 Apr 2025
- **Updated:** 28 Apr 2025
- **Also known as:** GHSA-pfxp-h2rx-w8c2

## What is CVE-2025-4012?

CVE-2025-4012 is a medium-severity server-side request forgery vulnerability in playeduxyz PlayEdu 开源培训系统, published on 28 Apr 2025. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A vulnerability was found in playeduxyz PlayEdu 开源培训系统 up to 1.8 and classified as problematic. This issue affects some unknown processing of the file /api/backend/v1/user/create of the component User Avatar Handler. The manipulation of the argument Avatar leads to server-side request forgery. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-918 (Server-Side Request Forgery)

## Which versions are affected by CVE-2025-4012?

It affects 1 product.


Products: Playeduos Playedu.

## How do I fix CVE-2025-4012?

No fix has been published for CVE-2025-4012 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-4012 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-4012 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-4012 and fix it if it is affected.

What it is: CVE-2025-4012 is a medium-severity server-side request forgery vulnerability in playeduxyz PlayEdu 开源培训系统, published on 28 Apr 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-4012 exists.

Affected product: playeduxyz PlayEdu 开源培训系统. 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-2025-4012/ (Markdown: https://insights.sbomify.com/CVE-2025-4012/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-4012
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-4012
- OSV: https://osv.dev/vulnerability/CVE-2025-4012

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From sbomify Insights: https://insights.sbomify.com/CVE-2025-4012/
Summaries are generated and may contain mistakes; the official description above is the record.