CVE-2025-15240

High

Published: 05 January 2026

Published

05 January 2026

Modified

20 January 2026

KEV Added

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Patch

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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 0.0042 62.2th percentile

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

Summary

CVE-2025-15240 is a high-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Quantatw Qoca Aim. Its CVSS base score is 8.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 37.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

This vulnerability is AI-related — categorised as Other AI Platforms.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-9 (Information Input Restrictions).

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

SI-10 requires validation of information inputs, directly preventing arbitrary file uploads by checking file content, type, and structure to block web shells.

SI-9 Information Input Restrictions good match

prevent

SI-9 restricts types, amounts, and characteristics of inputs, preventing upload of executable web shells through file type whitelisting and limits.

SI-3 Malicious Code Protection partial match

preventdetect

SI-3 provides malicious code protection to scan and quarantine uploaded web shells before execution on the server.

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 a public-facing web application (T1190) via arbitrary file upload by authenticated users, directly facilitating deployment and execution of web shells (T1505.003) for arbitrary code execution.

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

NVD Description

QOCA aim AI Medical Cloud Platform developed by Quanta Computer has an Arbitrary File Upload vulnerability, allowing authenticated remote attackers to upload and execute web shell backdoors, thereby enabling arbitrary code execution on the server.

Deeper analysisAI

CVE-2025-15240 is an Arbitrary File Upload vulnerability (CWE-434) in the QOCA aim AI Medical Cloud Platform developed by Quanta Computer. Published on 2026-01-05, it enables authenticated remote attackers to upload and execute web shell backdoors, resulting in arbitrary code execution on the server. The vulnerability carries 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), indicating high severity due to its network accessibility, low attack complexity, and significant impacts across confidentiality, integrity, and availability.

An attacker with low-privilege authenticated access can exploit this flaw remotely over the network without requiring user interaction. By uploading malicious files such as web shells, the attacker achieves arbitrary code execution on the server, potentially leading to full system compromise, data exfiltration, or further lateral movement within the environment.

TWCERT advisories at https://www.twcert.org.tw/en/cp-139-10616-cd942-2.html and https://www.twcert.org.tw/tw/cp-132-10615-157a3-1.html provide details on the vulnerability, including guidance for practitioners on identification and response.