CVE-2025-12846

HIGH EPSS 44.2%
Published Nov 11, 20257mo ago · Modified Jun 17, 20262w ago
8.8 CVSS 3.1
High
Find Similar
Published Nov 11, 2025 7mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
8.8
Exploitability
2.8
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
44.2% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-434 Unrestricted Upload of File with Dangerous Type Resource Mgmt

References 2

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.