# CVE-2021-31558: Delta Electronics DIAEnergie (Update A)

> An unauthenticated attacker can inject arbitrary code via the descr parameter, leading to stored cross-site scripting in Delta Electronics DIAEnergie.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 22 Dec 2021
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-89hq-fxvm-4hvw

## What is CVE-2021-31558?

CVE-2021-31558 is a medium-severity cross-site scripting vulnerability in Deltaww Diaenergie, published on 22 Dec 2021. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

DIAEnergie Version 1.7.5 and prior is vulnerable to stored cross-site scripting when an unauthenticated user injects arbitrary code into the parameter “descr” of the script “DIAE_hierarchyHandler.ashx”.

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

## Which versions are affected by CVE-2021-31558?

It affects 1 product.


Products: Deltaww Diaenergie.

## How do I fix CVE-2021-31558?

No fix has been published for CVE-2021-31558 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-31558 being exploited?

There is no known exploitation of CVE-2021-31558 in the wild and no public exploit code.

## Other vulnerabilities in Deltaww Diaenergie

- [CVE-2024-4547](https://insights.sbomify.com/CVE-2024-4547/): Delta Electronics DIAEnergie Unauthenticated SQL Injection (critical 9.8)
- [CVE-2024-4548](https://insights.sbomify.com/CVE-2024-4548/): Delta Electronics DIAEnergie SQL Injection (critical 9.8)
- [CVE-2022-43774](https://insights.sbomify.com/CVE-2022-43774/): SQL injection in Delta Electronics DIAEnergie (critical 9.8)
- [CVE-2022-43775](https://insights.sbomify.com/CVE-2022-43775/): SQL injection in Delta Electronics DIAEnergie (critical 9.8)
- [CVE-2022-3214](https://insights.sbomify.com/CVE-2022-3214/): Delta Electronics DIAEnergy Use of Hard-coded Credentials (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-31558 and fix it if it is affected.

What it is: CVE-2021-31558 is a medium-severity cross-site scripting vulnerability in Deltaww Diaenergie, published on 22 Dec 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-31558 in the wild and no public exploit code.

Affected product: Deltaww Diaenergie. 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-2021-31558/ (Markdown: https://insights.sbomify.com/CVE-2021-31558/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-31558
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-31558
- OSV: https://osv.dev/vulnerability/CVE-2021-31558

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-31558/
Summaries are generated and may contain mistakes; the official description above is the record.