CVE-2025-12846HIGH 8.8EPSS p44.0%

CVE-2025-12846CVE-2025-12846

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.

Scoring

CVSS 3.18.8 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS0.60% probability of exploitation · percentile 44.0% · 2026-06-19T12:03:05Z
Published2025-11-11
Last modified2026-04-15

Underlying weaknesses· 1

CWE-434

References

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

1

TypeTargetConfidenceTier
WeaknessUnrestricted Upload of File with Dangerous Typecwe-4340%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.