# CVE-2022-1989: CODESYS Visualization vulnerable to user enumeration

> Remote unauthenticated attackers can enumerate valid users via a login dialog in CODESYS Visualization, exposing sensitive user information.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 23 Aug 2022
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-j7qg-8r9m-wxm8

## What is CVE-2022-1989?

CVE-2022-1989 is a medium-severity vulnerability in CODESYS Visualization, published on 23 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

All CODESYS Visualization versions before V4.2.0.0 generate a login dialog vulnerable to information exposure allowing a remote, unauthenticated attacker to enumerate valid users.

Weakness: CWE-203 (Observable Discrepancy), CWE-204 (Observable Response Discrepancy)

## Which versions are affected by CVE-2022-1989?

It affects 1 product.


Products: Codesys Visualization.

## How do I fix CVE-2022-1989?

No fix has been published for CVE-2022-1989 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-1989 being exploited?

There is no known exploitation of CVE-2022-1989 in the wild and no public exploit code.

## Other vulnerabilities in CODESYS Visualization

- [CVE-2026-0393](https://insights.sbomify.com/CVE-2026-0393/): CODESYS Visualization - Insufficiently Protected Credentials (medium 6.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-1989 and fix it if it is affected.

What it is: CVE-2022-1989 is a medium-severity vulnerability in CODESYS Visualization, published on 23 Aug 2022. 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-2022-1989 in the wild and no public exploit code.

Affected product: CODESYS Visualization. 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-2022-1989/ (Markdown: https://insights.sbomify.com/CVE-2022-1989/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-1989
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-1989
- OSV: https://osv.dev/vulnerability/CVE-2022-1989

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-1989/
Summaries are generated and may contain mistakes; the official description above is the record.