CVE-2025-34083

Description

An unrestricted file upload vulnerability exists in the WordPress AIT CSV Import/Export plugin ≤ 3.0.3. The plugin exposes an upload handler at upload-handler.php that allows arbitrary file upload via a multipart/form-data POST request. This endpoint does not enforce authentication or content-type validation, enabling attackers to upload malicious PHP code directly to the server. Although the upload may produce an error related to CSV parsing, the malicious file is still saved under wp-content/uploads/ and remains executable. Notably, the plugin does not need to be active for exploitation to succeed.

Reserved 2025-04-15 | Published 2025-07-09 | Updated 2025-07-11 | Assigner VulnCheck

Problem types

CWE-434 Unrestricted Upload of File with Dangerous Type

CWE-306 Missing Authentication for Critical Function

CWE-20 Improper Input Validation

Product status

Default status
unaffected

*
affected

References

github.com/...modules/exploits/unix/webapp/wp_ait_csv_rce.rb exploit

www.wordfence.com/...-importexport-303-arbitrary-file-upload third-party-advisory

wpscan.com/...rability/36e699a4-91f2-426d-ba14-26036fbfeaea/ third-party-advisory

www.acunetix.com/...port-export-arbitrary-file-upload-3-0-3/ third-party-advisory

www.fortiguard.com/encyclopedia/ips/49754 third-party-advisory

www.ait-themes.club/csv-import-export-wordpress-plugin/ product

packetstorm.news/files/id/160918 exploit

vulncheck.com/.../wordpress-ait-csv-import-export-plugin-rce third-party-advisory

cve.org (CVE-2025-34083)

nvd.nist.gov (CVE-2025-34083)

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