Unauthenticated control access via client-side authentication
Published Apr 5, 2026 · Updated Apr 5, 2026
Improper authentication in Technostrobe HI-LED-WR120-G2 5.5.0.1R6.03.30 allows remote attackers to access protected controls. The embedded web interface lets client-side JavaScript accept an edited /LoginCB failure response, while the server omits session checks on later requests. No credentials or user interaction are required, exposing surveillance data and controls for flash patterns, intensity, timing, and light state.
Summary
What happened
Improper authentication in Technostrobe HI-LED-WR120-G2 5.5.0.1R6.03.30 allows remote attackers to access protected controls. The embedded web interface lets client-side JavaScript accept an edited /LoginCB failure response, while the server omits session checks on later requests. No credentials or user interaction are required, exposing surveillance data and controls for flash patterns, intensity, timing, and light state.
The record
- CVE
- CVE-2026-5570
- Published
- Apr 5, 2026
- Updated
- Apr 5, 2026
- Vendor
- Technostrobe
- Product
- HI-LED-WR120-G2
- Classifications
- CWE-287, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 5, 2026CVE publishedPublication date reported by the CVE source.
- Apr 5, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=5.5.0.1R6.03.30
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- Auth Bypass via HTTP Response Manipulation proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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