# CVE-2019-3754: Cross-site scripting in Unity Operating Environment

> Remote attackers can execute arbitrary scripts in victims' browsers via reflected XSS in Dell EMC Unity Unisphere, potentially compromising user sessions.

- **Severity:** Medium 4.7 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/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:** 3 Sep 2019
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-836g-4hmv-f4fc

## What is CVE-2019-3754?

CVE-2019-3754 is a medium-severity cross-site scripting vulnerability in DELL EMC Unity Operating Environment, published on 3 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

Dell EMC Unity Operating Environment versions prior to 5.0.0.0.5.116, Dell EMC UnityVSA versions prior to 5.0.0.0.5.116 and Dell EMC VNXe3200 versions prior to 3.1.10.9946299 contain a reflected cross-site scripting vulnerability on the cas/logout page. A remote unauthenticated attacker could potentially exploit this vulnerability by tricking a victim application user to supply malicious HTML or Java Script code to Unisphere, which is then reflected back to the victim and executed by the web browser.

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

## Which versions are affected by CVE-2019-3754?

It affects 3 products.


Products: Dell Emc Unity Operating Environment, Dell Emc Unityvsa Operating Environment, Dell Emc Vnxe3200 Firmware.

## How do I fix CVE-2019-3754?

No fix has been published for CVE-2019-3754 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-3754 being exploited?

There is no known exploitation of CVE-2019-3754 in the wild and no public exploit code.

## Other vulnerabilities in DELL EMC Unity Operating Environment

- [CVE-2021-36294](https://insights.sbomify.com/CVE-2021-36294/): Auth bypass in VNX Control Station (critical 9.8)
- [CVE-2021-36288](https://insights.sbomify.com/CVE-2021-36288/): Path traversal in VNX2 (high 8.6)
- [CVE-2021-36289](https://insights.sbomify.com/CVE-2021-36289/): Information disclosure in VNX Control Station (high 7.8)
- [CVE-2019-3741](https://insights.sbomify.com/CVE-2019-3741/): Information disclosure in Unity (high 7.8)
- [CVE-2018-11064](https://insights.sbomify.com/CVE-2018-11064/): Privilege escalation in Dell EMC Unity (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-3754 and fix it if it is affected.

What it is: CVE-2019-3754 is a medium-severity cross-site scripting vulnerability in DELL EMC Unity Operating Environment, published on 3 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-2019-3754 in the wild and no public exploit code.

Affected product: DELL EMC Unity Operating Environment. 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-2019-3754/ (Markdown: https://insights.sbomify.com/CVE-2019-3754/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-3754
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-3754
- OSV: https://osv.dev/vulnerability/CVE-2019-3754

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From sbomify Insights: https://insights.sbomify.com/CVE-2019-3754/
Summaries are generated and may contain mistakes; the official description above is the record.