Arbitrary file upload in Ait Themes Csv Import/export

CVE-2020-36849

The AIT CSV import/export plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the /wp-content/plugins/ait-csv-import-export/admin/upload-handler.php file in versions up to, and including, 3.0…

Vulnerability class: Unrestricted File Upload

EPSS: 0.857 (99.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/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-2020-36849?
CVE-2020-36849 is a critical-severity vulnerability in Ait Themes Csv Import/export, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2025-07-12.
How severe is CVE-2020-36849?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2020-36849 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.