# CVE-2021-34590: Bender Charge Controller: Cross-site Scripting

> An authenticated attacker can inject malicious HTML into configuration values, leading to cross-site scripting attacks on the charge controller interface.

- **Severity:** Medium 5.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N`)
- **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:** 27 Apr 2022
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-93jw-9wg6-48pf

## What is CVE-2021-34590?

CVE-2021-34590 is a medium-severity cross-site scripting vulnerability in Bender / ebee CC612, published on 27 Apr 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

In Bender/ebee Charge Controllers in multiple versions are prone to Cross-site Scripting. An authenticated attacker could write HTML Code into configuration values. These values are not properly escaped when displayed.

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

## Which versions are affected by CVE-2021-34590?

It affects 2 products.


Products: Bender Cc612 Firmware, Bender Icc15xx Firmware.

## How do I fix CVE-2021-34590?

No fix has been published for CVE-2021-34590 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-34590 being exploited?

There is no known exploitation of CVE-2021-34590 in the wild and no public exploit code.

## Other vulnerabilities in Bender / ebee CC612

- [CVE-2021-34601](https://insights.sbomify.com/CVE-2021-34601/): Bender Charge Controller: Hardcoded Credentials in Charge Controller (critical 9.8)
- [CVE-2021-34592](https://insights.sbomify.com/CVE-2021-34592/): Bender Charge Controller: Command injection via Web interface (high 8.8)
- [CVE-2021-34602](https://insights.sbomify.com/CVE-2021-34602/): Bender Charge Controller: Long URL could lead to webserver crash (high 8.8)
- [CVE-2021-34588](https://insights.sbomify.com/CVE-2021-34588/): Bender Charge Controller: Unprotected data export (high 8.6)
- [CVE-2021-34591](https://insights.sbomify.com/CVE-2021-34591/): Bender Charge Controller: Local privilege Escalation (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-34590 and fix it if it is affected.

What it is: CVE-2021-34590 is a medium-severity cross-site scripting vulnerability in Bender / ebee CC612, published on 27 Apr 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-2021-34590 in the wild and no public exploit code.

Affected product: Bender / ebee CC612. 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-2021-34590/ (Markdown: https://insights.sbomify.com/CVE-2021-34590/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-34590
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-34590
- OSV: https://osv.dev/vulnerability/CVE-2021-34590

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-34590/
Summaries are generated and may contain mistakes; the official description above is the record.