CVE-2025-6423

High

Published: 12 July 2025

Published

12 July 2025

Modified

15 April 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 0.0135 80.3th percentile

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

Summary

CVE-2025-6423 is a high-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Themeforest (inferred from references). 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 19.7% of CVEs by exploit likelihood; 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 2 other techniques. 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

Requires timely identification, reporting, and correction of flaws such as the arbitrary file upload vulnerability in the BeeTeam368 Extensions plugin.

SI-10 Information Input Validation good match

prevent

Mandates validation of uploaded file types and contents to directly counter the missing file type validation in the handle_submit_upload_file() function.

SI-9 Information Input Restrictions good match

prevent

Restricts types of allowed inputs, such as prohibiting dangerous file extensions, to block arbitrary file uploads by authenticated users.

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 →

T1105 Ingress Tool Transfer Command And Control

Adversaries may transfer tools or other files from an external system into a compromised environment.

attack.mitre.org →

Why these techniques?

Arbitrary file upload in public-facing WordPress plugin directly enables T1190 exploitation for initial access, T1505.003 web shell deployment, and T1105 tool/file ingress leading to RCE.

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

NVD Description

The BeeTeam368 Extensions plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the handle_submit_upload_file() function in all versions up to, and including, 2.3.5. This makes it possible for authenticated attackers with Subscriber-level access…

or higher to upload arbitrary files on the affected site's server which may make remote code execution possible.

Deeper analysisAI

CVE-2025-6423, published on 2025-07-12, is an arbitrary file upload vulnerability in the BeeTeam368 Extensions plugin for WordPress, affecting all versions up to and including 2.3.5. The flaw arises from missing file type validation in the handle_submit_upload_file() function, classified under CWE-434 (Unrestricted Upload of File with Dangerous Type). It 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 potential for significant impact.

Authenticated attackers with Subscriber-level access or higher can exploit this vulnerability over the network with low complexity and no user interaction required. By leveraging the inadequate validation, they can upload arbitrary files to the affected site's server, potentially leading to remote code execution.

Mitigation details are available in related advisories, including the Wordfence threat intelligence report at https://www.wordfence.com/threat-intel/vulnerabilities/id/96170b82-6ed9-4a52-8592-944163cdd3cf?source=cve and the plugin's change log on ThemeForest at https://themeforest.net/item/vidmov-video-wordpress-theme/35542187#item-description__change-log.