CVE-2026-39516
MediumCVSS 5.3Exploitation Probability (EPSS)
Low risk15th percentile - higher than 15% of all known CVEs
Summary
The Nexter Blocks WordPress plugin exposes sensitive system information to unauthorized entities. The vulnerability allows retrieval of embedded sensitive data.
Risk Assessment
An attacker can access confidential system information, potentially leading to further attacks on the infrastructure.
Recommendation
Update the Nexter Blocks plugin to a version newer than 4.7.0.
Other vulnerabilities in Nexter Blocks
See all- CVE-2025-15678Medium
The Nexter Blocks WordPress plugin before version 5.0.2 does not sanitize uploaded SVG files and allows SVG uploads for any user able to upload files (Author by default). This allows them to upload a file containing malicious JavaScript that executes when the file is accessed, leading to Stored Cross-Site Scripting.
- CVE-2026-15420Medium
The Nexter Blocks plugin for WordPress up to version 5.0.0 has a directory traversal vulnerability via the 'plus_name' parameter. Authenticated attackers with subscriber-level access or higher can delete arbitrary JS/CSS files on the server.
- CVE-2026-6740Medium
The Nexter Blocks plugin for WordPress up to version 4.7.4 is vulnerable to Stored Cross-Site Scripting via the 'commentIcon' parameter due to insufficient input sanitization and output escaping. Authenticated attackers with contributor-level access or higher can inject arbitrary scripts that execute when a user visits an affected page.
Original NVD description (English source)
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 <= 4.7.0.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS