# CVE-2025-65602: Code injection in n/a

> Attackers can execute arbitrary code in ChanCMS via a crafted POST request to the file save component.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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:** Not needed
- **Fix available:** No
- **Published:** 10 Dec 2025
- **Updated:** 18 Dec 2025
- **Also known as:** GHSA-374c-2pvv-fxf5

## What is CVE-2025-65602?

CVE-2025-65602 is a critical code injection vulnerability in n/a, published on 10 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A template injection vulnerability in the /vip/v1/file/save component of ChanCMS v3.3.4 allows attackers to execute arbitrary code via a crafted POST request.

Weakness: CWE-94 (Improper Control of Generation of Code), CWE-1336 (Improper Neutralization of Special Elements Used in a Template Engine)

## Which versions are affected by CVE-2025-65602?

It affects 1 product.


Products: Chancms Chancms.

## How do I fix CVE-2025-65602?

No fix has been published for CVE-2025-65602 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-65602 being exploited?

There is no known exploitation of CVE-2025-65602 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2025-11902](https://insights.sbomify.com/CVE-2025-11902/): yanyutao0402 ChanCMS findField sql injection (medium 5.3)
- [CVE-2025-11903](https://insights.sbomify.com/CVE-2025-11903/): yanyutao0402 ChanCMS update sql injection (medium 5.3)
- [CVE-2025-11904](https://insights.sbomify.com/CVE-2025-11904/): yanyutao0402 ChanCMS hasUse sql injection (medium 5.3)
- [CVE-2025-11905](https://insights.sbomify.com/CVE-2025-11905/): yanyutao0402 ChanCMS gather.js getArticle code injection (medium 5.3)
- [CVE-2025-10210](https://insights.sbomify.com/CVE-2025-10210/): yanyutao0402 ChanCMS Api.js search sql injection (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-65602 and fix it if it is affected.

What it is: CVE-2025-65602 is a critical code injection vulnerability in n/a, published on 10 Dec 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-2025-65602 in the wild and no public exploit code.

Affected product: n/a. 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-2025-65602/ (Markdown: https://insights.sbomify.com/CVE-2025-65602/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-65602
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-65602
- OSV: https://osv.dev/vulnerability/CVE-2025-65602

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-65602/
Summaries are generated and may contain mistakes; the official description above is the record.