# CVE-2021-32989: LCDS LAquis SCADA - Cross-site Scripting

> Reflected cross-site scripting in LCDS LAquis SCADA allows attackers to execute arbitrary scripts via crafted error messages.

- **Severity:** Critical 9.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/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:** 25 May 2022
- **Updated:** 16 Apr 2025
- **Also known as:** GHSA-xqp7-9f97-535f

## What is CVE-2021-32989?

CVE-2021-32989 is a critical cross-site scripting vulnerability in LCDS—Leão Consultoria e Desenvolvimento de Sistemas Ltda ME LAquis SCADA, published on 25 May 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

When a non-existent resource is requested, the LCDS LAquis SCADA application (version 4.3.1.1011 and prior) returns error messages which may allow reflected cross-site scripting.

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

## Which versions are affected by CVE-2021-32989?

It affects 1 product.


Products: Lcds Laquis Scada.

## How do I fix CVE-2021-32989?

No fix has been published for CVE-2021-32989 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-32989 being exploited?

There is no known exploitation of CVE-2021-32989 in the wild and no public exploit code.

## Other vulnerabilities in LCDS—Leão Consultoria e Desenvolvimento de Sistemas Ltda ME LAquis SCADA

- [CVE-2018-18996](https://insights.sbomify.com/CVE-2018-18996/): Missing authorization in LCDS Laquis SCADA (critical 9.8)
- [CVE-2018-18998](https://insights.sbomify.com/CVE-2018-18998/): Hardcoded credentials in LCDS Laquis SCADA (critical 9.8)
- [CVE-2018-17893](https://insights.sbomify.com/CVE-2018-17893/): Null dereference in LAquis SCADA (critical 9.8)
- [CVE-2018-17895](https://insights.sbomify.com/CVE-2018-17895/): Memory corruption in LAquis SCADA (critical 9.8)
- [CVE-2018-17897](https://insights.sbomify.com/CVE-2018-17897/): Integer overflow in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-32989 and fix it if it is affected.

What it is: CVE-2021-32989 is a critical cross-site scripting vulnerability in LCDS—Leão Consultoria e Desenvolvimento de Sistemas Ltda ME LAquis SCADA, published on 25 May 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-2021-32989 in the wild and no public exploit code.

Affected product: LCDS—Leão Consultoria e Desenvolvimento de Sistemas Ltda ME LAquis SCADA. 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-2021-32989/ (Markdown: https://insights.sbomify.com/CVE-2021-32989/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-32989
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-32989
- OSV: https://osv.dev/vulnerability/CVE-2021-32989

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From sbomify Insights: https://insights.sbomify.com/CVE-2021-32989/
Summaries are generated and may contain mistakes; the official description above is the record.