Cyber Resilience

CVE-2025-65783

Critical

Published: 13 January 2026

Published
13 January 2026
Modified
05 February 2026
KEV Added
—
Patch
—
CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0053 40.9th percentile
Risk Priority 70 floored blend · peak EPSS

Summary

CVE-2025-65783 is a critical-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Hubert Hub. Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 40.9th 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 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Deeper analysis

CVE-2025-65783 is an arbitrary file upload vulnerability affecting the /utils/uploadFile component in Hubert Imoveis e Administracao Ltda Hub v2.0 1.27.3. Published on 2026-01-13, it enables attackers to execute arbitrary code by uploading a crafted PDF file. The vulnerability carries a CVSS v3.1 base score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) and is associated with CWE-434 (Unrestricted Upload of File with Dangerous Type).

Remote attackers require no privileges or user interaction to exploit this vulnerability over the network with low complexity. Successful exploitation grants high-impact access to confidentiality, integrity, and availability, allowing arbitrary code execution on the affected system.

Advisories and further details are available in the provided references, including http://hub.com, http://hubert.com, and https://github.com/carlos-artmann/vulnerability-research/tree/main/CVE-2025-65783. Security practitioners should consult these sources for mitigation guidance and patch information.

OWASP Top 10 for Web (2025)

A06:2025 Insecure Design

EU & UK References

Vulnerability details

An arbitrary file upload vulnerability in the /utils/uploadFile component of Hubert Imoveis e Administracao Ltda Hub v2.0 1.27.3 allows attackers to execute arbitrary code via uploading a crafted PDF file.

CWE(s)
CWE-434

Related Threats

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?

Arbitrary file upload (CWE-434) in public-facing web component directly enables remote unauthenticated attackers to upload/execute malicious files (e.g., web shell) for code execution.

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

CVEs Like This One

CVE-2025-22654Shared CWE-434
CVE-2025-11948Shared CWE-434
CVE-2025-67260Shared CWE-434
CVE-2025-28915Shared CWE-434
CVE-2023-53956Shared CWE-434
CVE-2025-6058Shared CWE-434
CVE-2021-47819Shared CWE-434
CVE-2025-7852Shared CWE-434
CVE-2026-4883Shared CWE-434
CVE-2019-25630Shared CWE-434

Affected Assets

hubert
hub
2.0.1.27.3

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match
prevent

SI-10 directly prevents arbitrary file uploads by validating the type and content of uploaded files, such as crafted PDFs, to ensure they conform to expected formats.

SI-2 Flaw Remediation good match
prevent

SI-2 mandates identification and correction of the specific flaw in the /utils/uploadFile component enabling unrestricted dangerous file uploads.

SI-3 Malicious Code Protection partial match
preventdetect

SI-3 scans uploaded files for malicious code, mitigating execution risks from crafted PDFs that evade basic validation.

References