What the vulnerability does
01Description
Missing Authorization vulnerability in POSIMYTH Nexter Blocks the-plus-addons-for-block-editor allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Nexter Blocks: from n/a through <= 4.5.4.
Explanation of Vulnerability in Simple Terms
02Summary
Nexter Blocks versions 4.5.4 and earlier lack proper authorization checks, allowing unauthenticated attackers to read sensitive information. The vulnerability requires no user interaction and is accessible over the network. An attacker can access data they should not be permitted to view without needing valid credentials or special conditions.
What an attacker can do
03Attacker Capabilities
Read sensitive information without authentication.
Potential impact on your site
04Site Impact
Unauthorized users can access confidential data stored or processed by Nexter Blocks.
Conditions required to exploit
05Prerequisites
Network access to the site; no authentication or user interaction required.
Key dates
06Disclosure timeline
August 14, 2025
CVE published
April 28, 2026
Record updated