Authentication Bypass in AMSS++ 4.7 by Vendor
CVE-2020-37135

9.3CRITICAL

Key Information:

Vendor

Amssplus

Status
Amss++
Vendor
CVE Published:
6 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2020-37135?

AMSS++ 4.7 is vulnerable to an authentication bypass, enabling attackers to gain unauthorized access to administrative accounts by exploiting hardcoded credentials. Specifically, the default admin login details, ‘1234’ as both username and password, allow unauthorized users to access sensitive administrative functions, potentially compromising the system's integrity and exposing it to further attacks.

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Affected Version(s)

AMSS++ 4.7

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-2020-37135 - Proof of Concept

References

https://www.exploit-db.com/exploits/48114
exploit
https://www.vulncheck.com/advisories/amss-backdoor-admin-...
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

indoushka
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