# CVE-2025-4328: fp2952 spring-cloud-base HTTP Header MvcController.java sendBack redirect

> Attackers can exploit an open redirect in the sendBack function via the Referer header, potentially bypassing security controls in applications using this library.

- **Severity:** Medium 5.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/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:** A user has to click or open something
- **Fix available:** No
- **Published:** 6 May 2025
- **Updated:** 6 May 2025
- **Also known as:** GHSA-r42c-w8q9-ff4g

## What is CVE-2025-4328?

CVE-2025-4328 is a medium-severity vulnerability in fp2952 spring-cloud-base, published on 6 May 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

A vulnerability was found in fp2952 spring-cloud-base up to 7f050dc6db9afab82c5ce1d41cd74ed255ec9bfa. It has been declared as problematic. Affected by this vulnerability is the function sendBack of the file /spring-cloud-base-master/auth-center/auth-center-provider/src/main/java/com/peng/auth/provider/config/web/MvcController.java of the component HTTP Header Handler. The manipulation of the argument Referer leads to open redirect. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available.

Weakness: CWE-601 (URL Redirection to Untrusted Site)

## Which versions are affected by CVE-2025-4328?


## How do I fix CVE-2025-4328?

No fix has been published for CVE-2025-4328 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-4328 being exploited?

There is no known exploitation of CVE-2025-4328 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-4328 and fix it if it is affected.

What it is: CVE-2025-4328 is a medium-severity vulnerability in fp2952 spring-cloud-base, published on 6 May 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2025-4328 in the wild and no public exploit code.

Affected product: fp2952 spring-cloud-base. 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-2025-4328/ (Markdown: https://insights.sbomify.com/CVE-2025-4328/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-4328
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-4328
- OSV: https://osv.dev/vulnerability/CVE-2025-4328

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-4328/
Summaries are generated and may contain mistakes; the official description above is the record.