Unauthenticated File Read Vulnerability in UnForm Server Manager
CVE-2025-34154

9.2CRITICAL

Key Information:

Vendor
CVE Published:
13 August 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-34154?

The flaw in UnForm Server Manager allows attackers to exploit unauthenticated file read vulnerabilities through the log file analysis interface. The vulnerability is rooted in the arc endpoint, which permits the specification of log files via the fl parameter without appropriate authorization checks. Due to insufficient input validation and a lack of proper path sanitization, attackers can navigate the filesystem using relative paths, thereby gaining unauthorized access to sensitive files on the host system.

Affected Version(s)

UnForm Server Manager * < 10.1.12

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.

References

CVSS V4

Score:
9.2
Severity:
CRITICAL
Confidentiality:
High
Integrity:
None
Availability:
None
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

Jan Rodriguez of GM Sectec
.
CVE-2025-34154 : Unauthenticated File Read Vulnerability in UnForm Server Manager