CVE-2025-0471

Critical

Published: 16 January 2025

Published

16 January 2025

Modified

07 May 2025

KEV Added

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Patch

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CVSS Score 9.9 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS Score 0.0017 38.3th percentile

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

Summary

CVE-2025-0471 is a critical-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Sigb Pmb. Its CVSS base score is 9.9 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 38.3th 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).

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-2 Flaw Remediation good match

prevent

Directly mitigates the CVE by requiring timely identification, reporting, and correction of the unrestricted file upload flaw in the PMB platform.

SI-10 Information Input Validation good match

prevent

Enforces input validation at file upload entry points to block unrestricted uploads of dangerous file types leading to remote code execution.

SI-3 Malicious Code Protection good match

preventdetect

Scans uploaded files for malicious code at system entry points, preventing execution of harmful payloads from unrestricted file uploads.

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?

Unrestricted file upload (CWE-434) in a network-accessible web platform directly enables exploitation of a public-facing application (T1190) to deploy a web shell (T1505.003) for RCE and arbitrary command execution.

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

NVD Description

Unrestricted file upload vulnerability in the PMB platform, affecting versions 4.0.10 and above. This vulnerability could allow an attacker to upload a file to gain remote access to the machine, being able to access, modify and execute commands freely.

Deeper analysisAI

CVE-2025-0471 is an unrestricted file upload vulnerability in the PMB platform, affecting versions 4.0.10 and above. This flaw, linked to CWE-434 (Unrestricted Upload of File with Dangerous Type), enables attackers to upload malicious files, potentially leading to remote code execution. The vulnerability carries a CVSS v3.1 base score of 9.9, reflecting its critical severity due to network accessibility, low complexity, and high impact across confidentiality, integrity, and availability.

An attacker with low privileges (PR:L) can exploit this vulnerability over the network (AV:N) without user interaction (UI:N). Successful exploitation allows uploading a malicious file, granting remote access to the affected machine. This enables the attacker to freely access data, modify files, and execute arbitrary commands, with the high scope (S:C) amplifying risks to the entire system.

The INCIBE-CERT advisory at https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-pmb-platform details this among multiple vulnerabilities in the PMB platform, though specific mitigation steps such as patches or workarounds are outlined in the full notice.