Vulnerability · Published Nov 25, 2025 · Assigned by VulnCheck

CVE-2025-34350UnForm Server < 10.1.15 Doc Flow Unauthenticated File Read

High 8.7

In plain English

A high-severity path traversal in UnForm Server from Synergetic Data Systems, Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 57% of all known vulnerabilities).

Severity (CVSS 4.0)8.7High

Exploit odds (30 days)0.8%top 43.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

UnForm Server versions < 10.1.15 contain an unauthenticated arbitrary file read and SMB coercion vulnerability in the Doc Flow feature’s 'arc' endpoint. The Doc Flow module uses the 'arc' handler to retrieve and render pages or resources specified by the user-supplied 'pp' parameter, but it does so without enforcing authentication or restricting path inputs. As a result, an unauthenticated remote attacker can supply local filesystem paths to read arbitrary files accessible to the service account. On Windows deployments, providing a UNC path can also coerce the server into initiating outbound SMB authentication, potentially exposing NTLM credentials for offline cracking or relay. This issue may lead to sensitive information disclosure and, in some environments, enable further lateral movement.

Affected products (as reported)

Vendor	Product	Versions
Synergetic Data Systems, Inc.	UnForm Server	0 – before 10.1.15

Weakness: CWE-22, CWE-918 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

References

https://unform.com/download/uf101_readme.txt release-notes, patch
https://www.vulncheck.com/advisories/unform-server-doc-flow-unauthenticated-file-read third-party-advisory