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CVE-2025-12846

HIGH 8.8 CVSS 3.1
Published
November 11, 2025
Last modified
October 18, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-434
CVSS vector
CVSS: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.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • creativethemeshq Blocksy Companion — Up to and including 2.1.19

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/3391933/blocksy-companion/trunk/framework/features/svg.php
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/f8615422-5db7-495d-9956-7d6f658f42bf?source=cve
  • nvd.nist.gov Official NVD record