# CVE-2019-16321: Cross-site scripting in n/a

> Cross-site scripting vulnerability in ScadaBR allows attackers to inject malicious scripts via crafted requests to nonexistent resources.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 15 Sep 2019
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-jfrv-m79m-6cjx

## What is CVE-2019-16321?

CVE-2019-16321 is a medium-severity cross-site scripting vulnerability in n/a, published on 15 Sep 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

ScadaBR 1.0CE, and 1.1.x through 1.1.0-RC, has XSS via a request for a nonexistent resource, as demonstrated by the dwr/test/ PATH_INFO.

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

## Which versions are affected by CVE-2019-16321?

It affects 1 product.


Products: Scadabr Scadabr.

## How do I fix CVE-2019-16321?

No fix has been published for CVE-2019-16321 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-16321 being exploited?

There is no known exploitation of CVE-2019-16321 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2021-26828](https://insights.sbomify.com/CVE-2021-26828/): OpenPLC ScadaBR Unrestricted Upload of File with Dangerous Type (high 8.8, exploited in the wild)
- [CVE-2021-26829](https://insights.sbomify.com/CVE-2021-26829/): OpenPLC ScadaBR Cross-site Scripting (medium 5.4, exploited in the wild)
- [CVE-2026-9645](https://insights.sbomify.com/CVE-2026-9645/): ScadaBR Authenticated Remote Code Execution (critical 9.9)
- [CVE-2026-8602](https://insights.sbomify.com/CVE-2026-8602/): Missing authentication for critical function in ScadaBR (high 8.8)
- [CVE-2026-8603](https://insights.sbomify.com/CVE-2026-8603/): Improper neutralization of special elements used in an OS command ('OS command injection') in ScadaBR (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-16321 and fix it if it is affected.

What it is: CVE-2019-16321 is a medium-severity cross-site scripting vulnerability in n/a, published on 15 Sep 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2019-16321 in the wild and no public exploit code.

Affected product: n/a. 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-2019-16321/ (Markdown: https://insights.sbomify.com/CVE-2019-16321/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-16321
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-16321
- OSV: https://osv.dev/vulnerability/CVE-2019-16321

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-16321/
Summaries are generated and may contain mistakes; the official description above is the record.