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Vulnerability record · CVE-2025-12181 · published 5 December 2025

CVE-2025-12181: Unrestricted file upload vulnerability

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.

8.8 CVSS 3.1 High EPSS 0.61% · top 53.1% CWE-434 · Unrestricted file upload Deferred
8.8CVSS 3.1 base score
0.61%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

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.

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

References

LinkTags
https://plugins.trac.wordpress.org/changeset/3412182/
https://wordpress.org/plugins/contentstudio/
https://www.wordfence.com/threat-intel/vulnerabilities/id/5b92b0a4-7ebf-43b3-837b-ad710e5e35ff?source=cve

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2025-12181), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.