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

> Unauthenticated attackers can read arbitrary files and coerce SMB authentication via the Doc Flow arc endpoint, leading to information disclosure and potential lateral movement.

- **Severity:** High 8.7 (`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`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 25 Nov 2025
- **Updated:** 18 Feb 2026
- **Also known as:** GHSA-mvpf-rmh6-jw24

## What is CVE-2025-34350?

CVE-2025-34350 is a high-severity path traversal vulnerability in Synergetic Data Systems, Inc. UnForm Server, published on 25 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### 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.

Weakness: CWE-918 (Server-Side Request Forgery), CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2025-34350?


## How do I fix CVE-2025-34350?

No fix has been published for CVE-2025-34350 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-34350 being exploited?

There is no known exploitation of CVE-2025-34350 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-34350 and fix it if it is affected.

What it is: CVE-2025-34350 is a high-severity path traversal vulnerability in Synergetic Data Systems, Inc. UnForm Server, published on 25 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-34350 in the wild and no public exploit code.

Affected product: Synergetic Data Systems, Inc. UnForm Server. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-34350/ (Markdown: https://insights.sbomify.com/CVE-2025-34350/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-34350
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-34350
- OSV: https://osv.dev/vulnerability/CVE-2025-34350

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-34350/
Summaries are generated and may contain mistakes; the official description above is the record.