What the vulnerability does
01Description
Exposure of Sensitive System Information to an Unauthorized Control Sphere vulnerability in Hiroaki Miyashita Custom Field Template custom-field-template allows Retrieve Embedded Sensitive Data.This issue affects Custom Field Template: from n/a through <= 2.7.6.
Explanation of Vulnerability in Simple Terms
02Summary
Custom Field Template versions up to 2.7.6 expose sensitive information to authenticated users. A logged-in attacker with low privileges can read data they should not have access to. The vulnerability requires network access and valid credentials but no user interaction. Update to a version newer than 2.7.6.
What an attacker can do
03Attacker Capabilities
Read sensitive data they should not have access to.
Potential impact on your site
04Site Impact
Authenticated users can view private or restricted custom field data belonging to other users or posts.
Conditions required to exploit
05Prerequisites
Attacker must be logged in with low-level user account; network access to the site.
Key dates
06Disclosure timeline
December 9, 2025
CVE published
April 28, 2026
Record updated