ContentStudio: Dangerous file upload
ContentStudio is affected by dangerous file upload. Exploitation requires at least author-level access. Successful exploitation can place attacker-controlled executable content on the server and may lead to full site compromise.
- Component
- ContentStudio
- Plugin slug
contentstudio- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Dec 05, 2025
This CVE was published Dec 05, 2025 and is one of 8 known issues for this plugin.
Update, patch or deactivate.
Update ContentStudio to a release outside the affected range, or disable and remove it until a fixed version is available.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical 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.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H