Unauthenticated Command Injection Vulnerability in Maltrail by Stamparm
CVE-2025-34073

10CRITICAL

Key Information:

Vendor

Stamparm

Status
Maltrail
Vendor
CVE Published:
2 July 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-34073?

An unauthenticated command injection vulnerability in Maltrail versions up to 0.54 allows remote attackers to execute arbitrary operating system commands. This vulnerability arises from insufficient input validation of the username parameter in POST requests to the /login endpoint. The flaw is a result of inadequate handling of user-supplied data within subprocess.check_output() in core/http.py, permitting the injection of shell metacharacters. Exploitation is straightforward as it does not require authentication, and the commands are executed with the privileges of the Maltrail process, posing significant security risks.

Affected Version(s)

Maltrail 0 <= 0.54

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-2025-34073 - Proof of Concept

CVE-2025-34073 - Proof of Concept

References

https://raw.githubusercontent.com/rapid7/metasploit-frame...
exploit
https://huntr.com/bounties/be3c5204-fbd9-448d-b97c-96a8d2...
third-party-advisoryexploit
https://github.com/stamparm/maltrail
product

CVSS V4

Score:
10
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

Chris Wild (@briskets)
.
CVE-2025-34073 : Unauthenticated Command Injection Vulnerability in Maltrail by Stamparm