# CVE-2016-5809: Cross-site request forgery in Schneider Electric IONXXXX Series

> Attackers can perform unauthorized configuration changes on Schneider Electric power meters due to missing CSRF tokens.

- **Severity:** High 8.8 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **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:** 13 Feb 2017
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-rrvq-67jw-2vxq

## What is CVE-2016-5809?

CVE-2016-5809 is a high-severity vulnerability in Schneider Electric IONXXXX Series, published on 13 Feb 2017. 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

An issue was discovered on Schneider Electric IONXXXX series power meters ION73XX series, ION75XX series, ION76XX series, ION8650 series, ION8800 series, and PM5XXX series. There is no CSRF Token generated to authenticate the user during a session. Successful exploitation of this vulnerability can allow unauthorized configuration changes to be made and saved.

Weakness: CWE-352 (Cross-Site Request Forgery)

## Which versions are affected by CVE-2016-5809?

It affects 6 products.


Products: Schneider-Electric Ion5000, Schneider-Electric Ion7300, Schneider-Electric Ion7500, Schneider-Electric Ion7600, Schneider-Electric Ion8650, Schneider-Electric Ion8800.

## How do I fix CVE-2016-5809?

No fix has been published for CVE-2016-5809 yet. Limit exposure of the affected software until one is available.

## Is CVE-2016-5809 being exploited?

There is no known exploitation of CVE-2016-5809 in the wild and no public exploit code.

Public exploit code:

- Powerlogic/Schneider Electric IONXXXX Series - Cross-Site Request Forgery (exploitdb)

## Other vulnerabilities in Schneider Electric IONXXXX Series

- [CVE-2016-5815](https://insights.sbomify.com/CVE-2016-5815/): Missing authorization in Schneider Electric IONXXXX Series Power Meter Vulnerabilities (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-5809 and fix it if it is affected.

What it is: CVE-2016-5809 is a high-severity vulnerability in Schneider Electric IONXXXX Series, published on 13 Feb 2017. 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-2016-5809 in the wild and no public exploit code.

Affected product: Schneider Electric IONXXXX Series. 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-2016-5809/ (Markdown: https://insights.sbomify.com/CVE-2016-5809/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-5809
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-5809
- OSV: https://osv.dev/vulnerability/CVE-2016-5809

---
From sbomify Insights: https://insights.sbomify.com/CVE-2016-5809/
Summaries are generated and may contain mistakes; the official description above is the record.