CVE-2025-12181 - CVE House

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Status published High CVE-2025-12181

ContentStudio <= 1.3.7 - Authenticated (Author+) Arbitrary File Upload

8.8 CVSS

Vulnerability Description

The ContentStudio plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the cstu_update_post() function in all versions up to, and including, 1.3.7. This makes it possible for authenticated attackers, with Author-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible. CVE-2025-67910 is likely a duplicate of this.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

Kenneth Dunn

References

More from contentstudio

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WordPress Contentstudio plugin <= 1.3.7 - Arbitrary File Upload vulnerability

WordPress ContentStudio plugin <= 1.3.7 - Broken Access Control vulnerability

WordPress ContentStudio plugin <= 1.3.5 - Broken Access Control Vulnerability

ContentStudio <= 1.3.7 - Cross-Site Request Forgery to Settings Update

ContentStudio <= 1.2.5 - Authorization Bypass

Affected Vendor

contentstudio

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Affected Software

ContentStudio

Vulnerable Versions:

0

Timeline

Official Publish: December 5th, 2025

Last Modified: April 8th, 2026

Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application

T1505.003 Web Shell

T1105 Ingress Tool Transfer

Command and Control

T1059 Command and Scripting Interpreter

T1565.002 Stored Data Manipulation