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

Unrestricted Upload of File with Dangerous Type
CVE CVE-2025-12181
CVSS High (8.8)
Publicly Published December 4, 2025
Last Updated January 14, 2026
Researcher kr0d
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.

References

1 affected software package

Software Type Plugin
Software Slug contentstudio (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 1.3.7
Patched Version
  • 1.4.0
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