# CVE-2023-3233: Zhong Bang CRMEB PublicController.php get_image_base64 server-side request forgery

> Remote attackers can exploit a server-side request forgery flaw in CRMEB to access internal resources or bypass security controls.

- **Severity:** Medium 6.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L`)
- **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:** 14 Jun 2023
- **Updated:** 2 Jan 2025
- **Also known as:** GHSA-5g76-4vcr-3p8x

## What is CVE-2023-3233?

CVE-2023-3233 is a medium-severity server-side request forgery vulnerability in Zhong Bang CRMEB, published on 14 Jun 2023. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability was found in Zhong Bang CRMEB up to 4.6.0. It has been classified as critical. Affected is the function get_image_base64 of the file api/controller/v1/PublicController.php. The manipulation leads to server-side request forgery. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-231504. NOTE: 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-2023-3233?

It affects 1 product.


Products: Crmeb Crmeb.

## How do I fix CVE-2023-3233?

No fix has been published for CVE-2023-3233 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-3233 being exploited?

There is no known exploitation of CVE-2023-3233 in the wild and no public exploit code.

## Other vulnerabilities in Zhong Bang CRMEB

- [CVE-2025-25763](https://insights.sbomify.com/CVE-2025-25763/): SQL injection in n/a (critical 9.8)
- [CVE-2023-30185](https://insights.sbomify.com/CVE-2023-30185/): File upload in n/a (critical 9.8)
- [CVE-2020-21787](https://insights.sbomify.com/CVE-2020-21787/): File upload in n/a (critical 9.8)
- [CVE-2020-25466](https://insights.sbomify.com/CVE-2020-25466/): Server-side request forgery in n/a (critical 9.8)
- [CVE-2020-21394](https://insights.sbomify.com/CVE-2020-21394/): SQL injection in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-3233 and fix it if it is affected.

What it is: CVE-2023-3233 is a medium-severity server-side request forgery vulnerability in Zhong Bang CRMEB, published on 14 Jun 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-3233 in the wild and no public exploit code.

Affected product: Zhong Bang CRMEB. 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-2023-3233/ (Markdown: https://insights.sbomify.com/CVE-2023-3233/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-3233
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-3233
- OSV: https://osv.dev/vulnerability/CVE-2023-3233

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-3233/
Summaries are generated and may contain mistakes; the official description above is the record.