CVE-2025-35055

High

Published: 09 October 2025

Published

09 October 2025

Modified

22 October 2025

KEV Added

—

Patch

—

CVSS Score 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0023 45.7th percentile

Risk Priority 18 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-35055 is a high-severity Path Traversal (CWE-22) vulnerability in Newforma Project Center. Its CVSS base score is 8.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 45.7th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 AC-6 (Least Privilege) and SI-10 (Information Input Validation).

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploit Public-Facing Application (T1190) and 1 other technique. What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

SI-10 Information Input Validation good match

prevent

Directly addresses CWE-22 path traversal and CWE-434 unrestricted file uploads by requiring validation of file names, paths, extensions, and content in the UploadBlueimp.ashx endpoint.

SI-2 Flaw Remediation good match

prevent

Remediates the specific flaw in the vulnerable upload handler by requiring timely identification, reporting, and patching to Newforma 2023.1 or later.

AC-6 Least Privilege good match

prevent

Limits damage from successful uploads by enforcing least privilege on the NIX application process, restricting writable locations and executable permissions for web shells.

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

T1505.003 Web Shell Persistence

Adversaries may backdoor web servers with web shells to establish persistent access to systems.

attack.mitre.org →

Why these techniques?

CVE enables exploitation of public-facing application (T1190) via path traversal and unrestricted file upload, facilitating deployment and execution of web shells (T1505.003) for RCE.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

NVD Description

Newforma Info Exchange (NIX) '/UserWeb/Common/UploadBlueimp.ashx' allows an authenticated attacker to upload an arbitrary file to any location writable by the NIX application. An attacker can upload and run a web shell or other content executable by the web server. An…

attacker can also delete directories. In Newforma before 2023.1, anonymous access is enabled by default (CVE-2025-35062), allowing an otherwise unauthenticated attacker to effectively authenticate as 'anonymous' and exploit this file upload vulnerability.

Deeper analysisAI

CVE-2025-35055 affects Newforma Info Exchange (NIX), specifically the '/UserWeb/Common/UploadBlueimp.ashx' endpoint. This vulnerability enables an authenticated attacker to upload arbitrary files to any location writable by the NIX application. It is associated with CWE-22 (path traversal) and CWE-434 (unrestricted upload of file with dangerous type), earning a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

An authenticated attacker can exploit this to upload and execute a web shell or other content runnable by the web server, achieving remote code execution, or delete directories. In Newforma versions before 2023.1, anonymous access is enabled by default via the related CVE-2025-35062, allowing unauthenticated attackers to effectively authenticate as 'anonymous' and chain the exploits for unauthorized file upload and execution.

For mitigation details, refer to advisories including the CISA CSAF at https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-25-282-01.json and CVE records at https://www.cve.org/CVERecord?id=CVE-2025-35055 and https://www.cve.org/CVERecord?id=CVE-2025-35062. The vulnerability was published on 2025-10-09.