What’s Vulnerable › Vulnerabilities

CVE-2021-24311: External Media < 1.0.34 - Authenticated Arbitrary File Upload

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-06-01 · updated 2026-06-17
• Weakness: CWE-434

Description

The wp_ajax_upload-remote-file AJAX action of the External Media WordPress plugin before 1.0.34 was vulnerable to arbitrary file uploads via any authenticated users.

Affected products

• External Media: before 1.0.34 — fixed in 1.0.34

How to fix

Upgrade to a fixed version: External Media 1.0.34. Check the vendor advisory for mitigations.

References

• https://wpscan.com/vulnerability/4fb90999-6f91-4200-a0cc-bfe9b34a5de9
• https://www.wordfence.com/blog/2021/05/critical-vulnerability-patched-in-external-media-plugin/
• https://wpscan.com/vulnerability/4fb90999-6f91-4200-a0cc-bfe9b34a5de9
• https://www.wordfence.com/blog/2021/05/critical-vulnerability-patched-in-external-media-plugin/

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