What is CVE-2025-12181?

CVE-2025-12181 is a high-severity vulnerability in Contentstudio, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2025-12-05.

How severe is CVE-2025-12181?

High severity. CVSS v3 base score is 8.8 out of 10.

Arbitrary file upload in Contentstudio

CVE-2025-12181

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.

Vulnerability class: Unrestricted File Upload

EPSS: 0.005 (42.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Contentstudio — versions 0

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

Frequently asked questions

What is CVE-2025-12181?: CVE-2025-12181 is a high-severity vulnerability in Contentstudio, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2025-12-05.
How severe is CVE-2025-12181?: High severity. CVSS v3 base score is 8.8 out of 10.