---
id: CVE-2026-12995
title: >-
  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
summary: >-
  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 possib…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'
cwe:
  - CWE-639
vendor: hiroaki-miyashita
product: Custom Field Template
affected:
  - custom_field_template <= 2.7.8
published: '2026-09-22'
updated: '2026-09-22'
sourceUpdated: '2026-09-22T19:04:55.677'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-12995'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/custom-field-template/tags/2.7.7/custom-field-template.php#L105
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/custom-field-template/tags/2.7.7/custom-field-template.php#L3462
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/custom-field-template/tags/2.7.7/custom-field-template.php#L3500
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/custom-field-template/tags/2.7.8/custom-field-template.php#L105
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/custom-field-template/tags/2.7.8/custom-field-template.php#L3462
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/custom-field-template/tags/2.7.8/custom-field-template.php#L3500
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset?reponame=&old=3589466%40custom-field-template&new=3589466%40custom-field-template
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/02f44f5b-c513-4aba-b895-65df681620c6?source=cve
    label: security@wordfence.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-22T10:10:12.838575Z'
ingestedAt: '2026-09-22T08:00:27.696Z'
epss: 0.00213
epssPercentile: 0.11951
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.