Is this vulnerability remotely exploitable?

Yes. The description indicates that the attack can be launched remotely against the `/fs` endpoint, assuming the device's interface is reachable over the network.

Does exploiting this issue require authentication?

The public information does not clearly specify authentication requirements. Given the description of "unrestricted upload" and the high severity, it is reasonable to treat the endpoint as potentially accessible with weak or no authentication until proven otherwise.

What is the safest general fix pattern for this kind of flaw?

The most robust fix is to decouple upload destinations from client-controlled parameters, enforce strict server-side directory whitelisting, and require strong authentication and authorization for any file upload operations. Uploads should be confined to non-executable locations and validated against a strict file-type policy.

Severity:

HIGH RISK

(7.3)

Unrestricted File Upload via Improper Access Control (CWE-434) in Technostrobe HI-LED-WR120-G2 /fs Endpoint

CVE-2026-5573

Published:

Apr 5, 2026

Status:

Received

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

Remote Code Execution on the Router

April 6, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Remote Code Execution on Router Firmware

April 6, 2026

Vulnerability Type

Category:

Unrestricted File Upload

CWE:

CWE-284;CWE-434

Impact:

Arbitrary File Upload and Potential Remote Compromise

Severity:

HIGH RISK

(7.3)

CVSS Version:

3.1

Vulnerability Type

Category:

Unrestricted File Upload

CWE:

CWE-284;CWE-434

Impact:

Arbitrary File Upload and Potential Remote Compromise

Severity:

HIGH RISK

(7.3)

CVSS Version:

3.1

Catch This CVE While Code Is Being Written

Detect vulnerable code directly in pull requests, so CVEs are fixed before merge.

Get Started

Ship clean & secure code faster

START 14 DAYS FREE TRIAL

BOOK A DEMO

Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Unrestricted File Upload via Improper Access Control (CWE-434) in Technostrobe HI-LED-WR120-G2 /fs Endpoint

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Product

Pricing

Company

Legal

Developers

Compare

Product

Pricing

Company

Legal

Developers

Compare

Product

Pricing

Company

Legal

Developers

Compare