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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.

PUBLISHED Reserved 2025-10-24 | Published 2025-12-05 | Updated 2025-12-05 | Assigner Wordfence




HIGH: 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem types

CWE-434 Unrestricted Upload of File with Dangerous Type

Product status

Default status
unaffected

* (semver)
affected

Timeline

2025-12-04:Disclosed

Credits

Kenneth Dunn finder

References

www.wordfence.com/...-7ebf-43b3-837b-ad710e5e35ff?source=cve

wordpress.org/plugins/contentstudio/

cve.org (CVE-2025-12181)

nvd.nist.gov (CVE-2025-12181)