What the vulnerability does
01Description
Exposure of Sensitive System Information to an Unauthorized Control Sphere vulnerability in POSIMYTH Nexter Blocks the-plus-addons-for-block-editor allows Retrieve Embedded Sensitive Data.This issue affects Nexter Blocks: from n/a through <= 4.6.3.
Explanation of Vulnerability in Simple Terms
02Summary
Nexter Blocks versions 4.6.3 and earlier contain an exposure of sensitive information vulnerability. An attacker with low-level user privileges can read data they should not have access to. The vulnerability requires network access and valid user credentials but no additional user interaction. Update to a version newer than 4.6.3 to remediate.
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 access confidential information beyond their permission level.
Conditions required to exploit
05Prerequisites
Valid low-level user account on the site; network access.
Key dates
06Disclosure timeline
January 22, 2026
CVE published
April 28, 2026
Record updated