# CVE-2017-10896: Cross-site scripting in BBR-4HG

> Attackers can inject arbitrary web script or HTML into Buffalo broadband routers, potentially compromising user sessions or device integrity.

- **Severity:** Medium 6.1 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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:** 8 Dec 2017
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-hc6x-qrj5-34w2

## What is CVE-2017-10896?

CVE-2017-10896 is a medium-severity cross-site scripting vulnerability in BUFFALO INC. BBR-4HG, published on 8 Dec 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

Cross-site scripting vulnerability in Buffalo BBR-4HG and and BBR-4MG broadband routers with firmware 1.00 to 1.48 and 2.00 to 2.07 allows an attacker to inject arbitrary web script or HTML via unspecified vectors.

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

## Which versions are affected by CVE-2017-10896?

It affects 2 products.


Products: Buffalo Bbr-4hg Firmware, Buffalo Bbr-4mg Firmware.

## How do I fix CVE-2017-10896?

No fix has been published for CVE-2017-10896 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-10896 being exploited?

There is no known exploitation of CVE-2017-10896 in the wild and no public exploit code.

## Other vulnerabilities in BUFFALO INC. BBR-4HG

- [CVE-2017-10897](https://insights.sbomify.com/CVE-2017-10897/): Denial of service in BBR-4HG (medium 4.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-10896 and fix it if it is affected.

What it is: CVE-2017-10896 is a medium-severity cross-site scripting vulnerability in BUFFALO INC. BBR-4HG, published on 8 Dec 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-2017-10896 in the wild and no public exploit code.

Affected product: BUFFALO INC. BBR-4HG. 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-2017-10896/ (Markdown: https://insights.sbomify.com/CVE-2017-10896/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-10896
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-10896
- OSV: https://osv.dev/vulnerability/CVE-2017-10896

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From sbomify Insights: https://insights.sbomify.com/CVE-2017-10896/
Summaries are generated and may contain mistakes; the official description above is the record.