# CVE-2023-28651: Cross-site scripting in CONPROSYS HMI System (CHS)

> An attacker with admin privileges can inject scripts that execute in other admins' browsers, potentially leading to account takeover.

- **Severity:** Medium 4.8 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 1 Jun 2023
- **Updated:** 9 Jan 2025
- **Also known as:** GHSA-8xq3-xxw7-pvf5

## What is CVE-2023-28651?

CVE-2023-28651 is a medium-severity cross-site scripting vulnerability in Contec Co., Ltd. CONPROSYS HMI System (CHS), published on 1 Jun 2023. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

Cross-site scripting vulnerability exists in CONPROSYS HMI System (CHS) versions prior to 3.5.3. If a user who can access the affected product with an administrative privilege configures specially crafted settings, an arbitrary script may be executed on the web browser of the other user who is accessing the affected product with an administrative privilege.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2023-28651?

It affects 1 product.


Products: Contec Conprosys Hmi System.

## How do I fix CVE-2023-28651?

No fix has been published for CVE-2023-28651 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-28651 being exploited?

There is no known exploitation of CVE-2023-28651 in the wild and no public exploit code.

## Other vulnerabilities in Contec Co., Ltd. CONPROSYS HMI System (CHS)

- [CVE-2022-44456](https://insights.sbomify.com/CVE-2022-44456/): Command injection in CONPROSYS HMI System (CHS) (critical 9.8)
- [CVE-2023-28657](https://insights.sbomify.com/CVE-2023-28657/): Privilege escalation in CONPROSYS HMI System (CHS) (high 8.8)
- [CVE-2023-28713](https://insights.sbomify.com/CVE-2023-28713/): Information disclosure in CONPROSYS HMI System (CHS) (high 8.1)
- [CVE-2023-28399](https://insights.sbomify.com/CVE-2023-28399/): Missing authorization in CONPROSYS HMI System (CHS) (high 7.8)
- [CVE-2023-22331](https://insights.sbomify.com/CVE-2023-22331/): Hardcoded credentials in CONPROSYS HMI System (CHS) (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-28651 and fix it if it is affected.

What it is: CVE-2023-28651 is a medium-severity cross-site scripting vulnerability in Contec Co., Ltd. CONPROSYS HMI System (CHS), published on 1 Jun 2023. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2023-28651 in the wild and no public exploit code.

Affected product: Contec Co., Ltd. CONPROSYS HMI System (CHS). 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-2023-28651/ (Markdown: https://insights.sbomify.com/CVE-2023-28651/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-28651
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-28651
- OSV: https://osv.dev/vulnerability/CVE-2023-28651

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From sbomify Insights: https://insights.sbomify.com/CVE-2023-28651/
Summaries are generated and may contain mistakes; the official description above is the record.