CVE-2025-34154Public exploitNetwork attack vector

Unauthenticated file read via unsanitized fl parameter

Published Aug 13, 2025 · Updated May 15, 2026

Path traversal in UnForm Server Manager before 10.1.12 allows remote attackers to read arbitrary host files without authentication. The arc endpoint passes the fl parameter to its log-file opening operation without validating or sanitizing relative path elements. Any network client that can reach the browser interface can request files readable by the server process, including sensitive operating-system files.

CVSS severity9.2
Critical
EPSS probability0.65%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in UnForm Server Manager before 10.1.12 allows remote attackers to read arbitrary host files without authentication. The arc endpoint passes the fl parameter to its log-file opening operation without validating or sanitizing relative path elements. Any network client that can reach the browser interface can request files readable by the server process, including sensitive operating-system files.

The record

CVE
CVE-2025-34154
Published
Aug 13, 2025
Updated
May 15, 2026
Vendor
Synergetic Data Systems, Inc.
Product
UnForm Server Manager
Classifications
CWE-22, CAPEC-126, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 13, 2025CVE publishedPublication date reported by the CVE source.
  2. May 15, 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.

  1. Affected versionversion=0 <10.1.12

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Synergetic Data Systems, Inc. · UnForm Server Managerversion=0 <10.1.12

Published CVSS scores

9.2VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CAPEC-126Path Traversal
T1005Data from Local System

Public exploit references

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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