VULNERABILITY INTELLIGENCE
CVE-2025-12846
CVSS score8.8 HIGH
EPSS probability0.73%
CISA KEVNot currently listed
Published2025-11-11
Last modified2026-10-18
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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.
Weakness classification
- security@wordfence.com: CWE-434