Authentication Bypass in Tinycontrol LAN Controller by Tinycontrol
CVE-2023-54327

9.3CRITICAL

Key Information:

Vendor

Tinycontrol

Status
Lan Controller
Vendor
CVE Published:
30 December 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2023-54327?

The Tinycontrol LAN Controller 1.58a is susceptible to an authentication bypass vulnerability that enables unauthorized attackers to change administrative passwords through specially crafted API requests. By exploiting the /stm.cgi endpoint with a malicious authentication parameter, attackers can disable essential access controls, granting them the ability to modify admin credentials without proper authorization. This serious flaw highlights the need for stringent security measures to protect sensitive administrative functions.

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Affected Version(s)

LAN Controller HW 3.8

LAN Controller Unknown <= 1.58a

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2023-54327 - Proof of Concept

References

https://www.exploit-db.com/exploits/51732
exploit
https://www.tinycontrol.pl
product
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2023-57...
third-party-advisory

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

LiquidWorm as Gjoko Krstic of Zero Science Lab
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