# CVE-2026-108908: Netcore NR268 Web UI l7_call_board_user_set.cgi eval cross site scripting

> Remote attackers can inject malicious scripts via the Web UI, potentially executing code or bypassing security controls on Netcore NR268 routers.

- **Severity:** Medium 4.8 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 12 Oct 2026
- **Updated:** 15 Oct 2026
- **Also known as:** GHSA-g6vv-rvqm-27w3

## What is CVE-2026-108908?

CVE-2026-108908 is a medium-severity cross-site scripting vulnerability in Netcore NR268, published on 12 Oct 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

A vulnerability was identified in Netcore NR268 1.7.121109. Affected by this vulnerability is the function eval of the file /router/l7_call_board_user_set.cgi of the component Web UI. Such manipulation of the argument title/note/URL/content leads to cross site scripting. The attack can be launched remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-94 (Improper Control of Generation of Code), CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2026-108908?


## How do I fix CVE-2026-108908?

No fix has been published for CVE-2026-108908 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-108908 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-108908 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-108908 and fix it if it is affected.

What it is: CVE-2026-108908 is a medium-severity cross-site scripting vulnerability in Netcore NR268, published on 12 Oct 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-108908 exists.

Affected product: Netcore NR268. 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-2026-108908/ (Markdown: https://insights.sbomify.com/CVE-2026-108908/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-108908
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-108908
- OSV: https://osv.dev/vulnerability/CVE-2026-108908

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-108908/
Summaries are generated and may contain mistakes; the official description above is the record.