CVE-2025-4279HIGH 8.8EPSS p44.9%

CVE-2025-4279CVE-2025-4279

Description

The External image replace plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'external_image_replace_get_posts::replace_post' function in all versions up to, and including, 1.0.8. This makes it possible for authenticated attackers, with contributor-level and above permissions, 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
EPSS0.62% probability of exploitation · percentile 44.9% · 2026-06-19T12:03:05Z
Published2025-05-05
Last modified2026-04-15

Underlying weaknesses· 1

CWE-434

References

  1. https://plugins.trac.wordpress.org/browser/external-image-replace/tags/1.0.8/class.php#L87
  2. https://www.wordfence.com/threat-intel/vulnerabilities/id/ee1624fd-d98b-4953-99dc-a952dda48aa1?source=cve

1

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

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