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Vulnerabilities

Vulnerability · CVE-2025-4279

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'

Published May 5, 2025 · catalog updated Apr 8, 2026 · External image replace

Check if you run it

No confirmed exploitation is on record for CVE-2025-4279. EPSS is 0.79%. Act only if a listed version of External image replace is installed.

Severity
High8.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.79%
Remediation
Vendor / distro source
Affected products
vendor muromuro External image replace 0 ≤1.0.8

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor muromuro External image replace 0 ≤1.0.80 ≤1.0.8

How to fix CVE-2025-4279

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-4279. EPSS is 0.79%. Act only if a listed version of External image replace is installed.

Which versions are affected?

Compare what you have installed with muromuro External image replace 0 ≤1.0.8 0 ≤1.0.8. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.79%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

WordPress security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 5, 2025 · EUVD

    Detected

    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 ma

  2. Apr 8, 2026 · EUVD

    Updated

    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 ma

Sources

  • CVE.orgVulnerability recordCVE-2025-4279

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-4279

    30-day exploitation probability 0.8%

    first.org
  • EUVDVulnerability recordEUVD-2025-13432

    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 attac

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.