Arbitrary file upload in External Media Project

CVE-2021-24311

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.

Vulnerability class: Unrestricted File Upload

EPSS: 0.018 (76.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-24311?
CVE-2021-24311 is a high-severity vulnerability in External Media Project, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2021-06-01.
How severe is CVE-2021-24311?
High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2021-24311 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.