What’s Vulnerable › Vulnerabilities

CVE-2025-4279: External image replace <= 1.0.8 - Authenticated (Contributor+) Arbitrary File Upload

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-05-05 · updated 2026-06-17
• Weakness: CWE-434

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.

Affected products

• muromuro External image replace: through 1.0.8

References

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

Get alerted when CVE-2025-4279 or the next vulnerability affects your stack