# CVE-2026-5573: Technostrobe HI-LED-WR120-G2 fs unrestricted upload

> Remote attackers can upload arbitrary files via the /fs endpoint, potentially leading to code execution on Technostrobe LED controllers.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 5 Apr 2026
- **Updated:** 6 Apr 2026
- **Also known as:** GHSA-mfwc-7h58-p642

## What is CVE-2026-5573?

CVE-2026-5573 is a medium-severity vulnerability in Technostrobe HI-LED-WR120-G2, published on 5 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A weakness has been identified in Technostrobe HI-LED-WR120-G2 5.5.0.1R6.03.30. This impacts an unknown function of the file /fs. Executing a manipulation of the argument cwd can lead to unrestricted upload. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type), CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2026-5573?

It affects 1 product.


Products: Technostrobe Hi-Led-Wr120-G2 Firmware.

## How do I fix CVE-2026-5573?

No fix has been published for CVE-2026-5573 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-5573 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-5573 exists.

## Other vulnerabilities in Technostrobe HI-LED-WR120-G2

- [CVE-2026-5569](https://insights.sbomify.com/CVE-2026-5569/): Technostrobe HI-LED-WR120-G2 Endpoint access control (medium 6.9)
- [CVE-2026-5570](https://insights.sbomify.com/CVE-2026-5570/): Technostrobe HI-LED-WR120-G2 LoginCB index_config improper authentication (medium 6.9)
- [CVE-2026-5571](https://insights.sbomify.com/CVE-2026-5571/): Technostrobe HI-LED-WR120-G2 Configuration Data fs information disclosure (medium 6.9)
- [CVE-2026-5574](https://insights.sbomify.com/CVE-2026-5574/): Technostrobe HI-LED-WR120-G2 FsBrowseClean deletefile authorization (medium 6.9)
- [CVE-2026-5572](https://insights.sbomify.com/CVE-2026-5572/): Technostrobe HI-LED-WR120-G2 cross-site request forgery (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-5573 and fix it if it is affected.

What it is: CVE-2026-5573 is a medium-severity vulnerability in Technostrobe HI-LED-WR120-G2, published on 5 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-5573 exists.

Affected product: Technostrobe HI-LED-WR120-G2. 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-2026-5573/ (Markdown: https://insights.sbomify.com/CVE-2026-5573/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-5573
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-5573
- OSV: https://osv.dev/vulnerability/CVE-2026-5573

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-5573/
Summaries are generated and may contain mistakes; the official description above is the record.