Description
The Custom Field Template plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.7.8 via the edit_meta_value due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with contributor-level access and above, to delete arbitrary media attachments site-wide by supplying any numeric attachment ID in the file-field parameter alongside the corresponding delete flag, causing content loss and broken pages. Exploitation requires that the attacker's post is governed by a Custom Field Template containing at least one file-type field with the mediaRemove option not enabled, which is the default configuration for file fields.
References8
- plugins.trac.wordpress.org/browser/custom-field-template/tags/2…
- plugins.trac.wordpress.org/browser/custom-field-template/tags/2…
- plugins.trac.wordpress.org/browser/custom-field-template/tags/2…
- plugins.trac.wordpress.org/browser/custom-field-template/tags/2…
- plugins.trac.wordpress.org/browser/custom-field-template/tags/2…
- plugins.trac.wordpress.org/browser/custom-field-template/tags/2…
- plugins.trac.wordpress.org/changeset?reponame=&old=3589466%40cu…
- www.wordfence.com/threat-intel/vulnerabilities/id/02f44f5b-c513…
Metrics
- CVSS 3.1
-
4.3
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - EPSS — exploit probability
- 0% percentile: 31 · as of 8 November 2026
- CWE
- CWE-639
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.