# CVE-2025-4260: zhangyanbo2007 youkefu TemplateController.java impsave deserialization

> Remote attackers can exploit a deserialization flaw in the TemplateController to execute arbitrary code, requiring immediate patching.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/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:** Not needed
- **Fix available:** No
- **Published:** 5 May 2025
- **Updated:** 5 May 2025
- **Also known as:** GHSA-483m-67m4-vjw4

## What is CVE-2025-4260?

CVE-2025-4260 is a medium-severity unsafe deserialization vulnerability in zhangyanbo2007 youkefu, published on 5 May 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability was found in zhangyanbo2007 youkefu up to 4.2.0 and classified as problematic. Affected by this issue is the function impsave of the file m\web\handler\admin\system\TemplateController.java. The manipulation of the argument dataFile leads to deserialization. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-502 (Deserialization of Untrusted Data), CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2025-4260?

It affects 1 product.


Products: Zhangyanbo2007 Youkefu.

## How do I fix CVE-2025-4260?

No fix has been published for CVE-2025-4260 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-4260 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-4260 exists.

## Other vulnerabilities in zhangyanbo2007 youkefu

- [CVE-2025-4258](https://insights.sbomify.com/CVE-2025-4258/): zhangyanbo2007 youkefu MediaController.java upload unrestricted upload (medium 5.3)
- [CVE-2025-3381](https://insights.sbomify.com/CVE-2025-3381/): zhangyanbo2007 youkefu File Upload WebIMController.java path traversal (medium 5.3)
- [CVE-2025-3241](https://insights.sbomify.com/CVE-2025-3241/): zhangyanbo2007 youkefu XML Document CallCenterRouterController.java xml external entity reference (medium 5.3)
- [CVE-2025-2997](https://insights.sbomify.com/CVE-2025-2997/): zhangyanbo2007 youkefu url server-side request forgery (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-4260 and fix it if it is affected.

What it is: CVE-2025-4260 is a medium-severity unsafe deserialization vulnerability in zhangyanbo2007 youkefu, published on 5 May 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-2025-4260 exists.

Affected product: zhangyanbo2007 youkefu. 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-2025-4260/ (Markdown: https://insights.sbomify.com/CVE-2025-4260/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-4260
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-4260
- OSV: https://osv.dev/vulnerability/CVE-2025-4260

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-4260/
Summaries are generated and may contain mistakes; the official description above is the record.