# CVE-2026-5573: Technostrobe HI-LED-WR120-G2 unauthenticated file upload in /fs

Source: https://junglewise.ai/threats/cve-2026-5573-technostrobe-hi-led-wr120-g2-unauthenticated-file-upload-in-fs  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-04-05. Updated: 2026-07-24  
License: CC BY 4.0 with a link back

CVE-2026-5573 · Severity: high · CVSS 7.3 · Published 2026-04-05

Technostrobe HI-LED-WR120-G2 is a lighting controller used on broadcast and aviation towers to ensure compliance with safety regulations. A security flaw allows unauthorized individuals to upload arbitrary files to the device over the network without needing a password. This could allow an attacker to take full control of the device, potentially disabling critical safety lighting or using the controller as a foothold to attack other parts of the network.

Technologies: [Technostrobe Hi-Led-Wr120-G2](https://junglewise.ai/threats/technologies/hi-led-wr120-g2), [Technostrobe Hi-Led-Wr120-G2 Firmware](https://junglewise.ai/threats/technologies/hi-led-wr120-g2-firmware). Vendors: [Technostrobe](https://junglewise.ai/threats/vendors/technostrobe).

## Quick answers

**Is CVE-2026-5573 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-5573 being exploited in the wild.

**How severe is CVE-2026-5573?** High severity, with a CVSS score of 7.3, published 5 April 2026.

**Which products and versions are affected?** Technostrobe Hi-Led-Wr120-G2 Firmware 5.5.0.1R6.03.30.

**Is there a fix for CVE-2026-5573?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-5573 attacked?** It is attacked over the network, in an operating system.

**Am I affected by CVE-2026-5573?** Check whether you run Technostrobe Hi-Led-Wr120-G2 or Technostrobe Hi-Led-Wr120-G2 Firmware at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

An unauthenticated arbitrary file upload vulnerability exists in the Technostrobe HI-LED-WR120-G2 firmware version 5.5.0.1R6.03.30. The flaw is located in the '/fs' file system handler, where the 'cwd' argument can be manipulated to specify upload paths. Because the application fails to validate user authorization or restrict file types/locations, a remote attacker can upload malicious scripts or binaries to the web root. This can lead to Remote Code Execution (RCE) and full system compromise. A public exploit (PoC) is available, and the vendor has reportedly not responded to disclosure attempts.

## Affected products

- Technostrobe HI-LED-WR120-G2 firmware 5.5.0.1R6.03.30

## Timeline

- 2026-04-05: disclosed: Initial disclosure via VulDB and NVD
- 2026-04-05: advisory

## References

- [https://github.com/shiky8/my--cve-vulnerability-research/blob/main/my_VulnDB_cves/CVE-TECHNOSTROBE-05-FileUpload.md](https://github.com/shiky8/my--cve-vulnerability-research/blob/main/my_VulnDB_cves/CVE-TECHNOSTROBE-05-FileUpload.md)
- [https://vuldb.com/submit/783326](https://vuldb.com/submit/783326)
- [https://vuldb.com/vuln/355343](https://vuldb.com/vuln/355343)
- [https://vuldb.com/vuln/355343/cti](https://vuldb.com/vuln/355343/cti)

## Related threats

- [Technostrobe HI-LED-WR120-G2 unauthenticated file deletion in FsBrowseClean](https://junglewise.ai/threats/cve-2026-5574-technostrobe-hi-led-wr120-g2-unauthenticated-file-deletion-in)
- [Technostrobe HI-LED-WR120-G2 CSRF in web interface](https://junglewise.ai/threats/cve-2026-5572-technostrobe-hi-led-wr120-g2-csrf-in-web-interface)
- [Technostrobe HI-LED-WR120-G2 unauthenticated information disclosure in /fs](https://junglewise.ai/threats/cve-2026-5571-technostrobe-hi-led-wr120-g2-unauthenticated-information)
- [Technostrobe HI-LED-WR120-G2 auth bypass in /LoginCB](https://junglewise.ai/threats/cve-2026-5570-technostrobe-hi-led-wr120-g2-auth-bypass-in-logincb)
- [Technostrobe HI-LED-WR120-G2 broken access control in Endpoint](https://junglewise.ai/threats/cve-2026-5569-technostrobe-hi-led-wr120-g2-broken-access-control-in-endpoint)