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Vulnerabilities and Security Researches

Blocksy Companion, CVE-2025-12846

CVE, Research URL

CVE-2025-12846

Application

Blocksy Companion

Published on
Nov 11, 2025
Research Description
The Blocksy Companion plugin for WordPress is vulnerable to authenticated arbitrary file upload in all versions up to, and including, 2.1.19. This is due to insufficient file type validation detecting SVG files, allowing double extension files to bypass sanitization while being accepted as a valid SVG file. This makes it possible for authenticated attackers, with author level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.
Affected versions
max 2.1.20.
Status
vulnerable