# CVE-2021-27416: Cross-site scripting in Hitachi ABB Power Grids Ellipse EAM

> Attackers can execute malicious scripts in user browsers via crafted links, leading to data theft or session hijacking in Hitachi ABB Power Grids Ellipse EAM.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 11 Mar 2022
- **Updated:** 16 Apr 2025
- **Also known as:** GHSA-9fmx-59hw-pgp3

## What is CVE-2021-27416?

CVE-2021-27416 is a medium-severity cross-site scripting vulnerability in Hitachi ABB Power Grids Ellipse Enterprise Asset Management (EAM), published on 11 Mar 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

An attacker could exploit this vulnerability in Hitachi ABB Power Grids Ellipse Enterprise Asset Management (EAM) versions prior to and including 9.0.25 by tricking a user to click on a link containing malicious code that would then be run by the web browser. This can result in the compromise of confidential information, or even the takeover of the user’s session.

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

## Which versions are affected by CVE-2021-27416?

It affects 1 product.


Products: Hitachienergy Ellipse Enterprise Asset Management.

## How do I fix CVE-2021-27416?

No fix has been published for CVE-2021-27416 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-27416 being exploited?

There is no known exploitation of CVE-2021-27416 in the wild and no public exploit code.

## Other vulnerabilities in Hitachi ABB Power Grids Ellipse Enterprise Asset Management (EAM)

- [CVE-2021-27414](https://insights.sbomify.com/CVE-2021-27414/): User interface misrepresentation of critical information in Hitachi ABB Power Grids Ellipse EAM (medium 5.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-27416 and fix it if it is affected.

What it is: CVE-2021-27416 is a medium-severity cross-site scripting vulnerability in Hitachi ABB Power Grids Ellipse Enterprise Asset Management (EAM), published on 11 Mar 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-27416 in the wild and no public exploit code.

Affected product: Hitachi ABB Power Grids Ellipse Enterprise Asset Management (EAM). 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-2021-27416/ (Markdown: https://insights.sbomify.com/CVE-2021-27416/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-27416
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-27416
- OSV: https://osv.dev/vulnerability/CVE-2021-27416

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From sbomify Insights: https://insights.sbomify.com/CVE-2021-27416/
Summaries are generated and may contain mistakes; the official description above is the record.