AitThemes AIT CSV Import Export Plugin up to 3.0.3 on WordPress unrestricted upload

Summaryinfo

A vulnerability classified as critical has been found in AitThemes AIT CSV Import Export Plugin up to 3.0.3 on WordPress. Affected by this vulnerability is an unknown functionality. This manipulation causes unrestricted upload. This vulnerability is handled as CVE-2025-34083. The attack can be initiated remotely. Additionally, an exploit exists.

Detailsinfo

A vulnerability was found in AitThemes AIT CSV Import Export Plugin up to 3.0.3 on WordPress. It has been declared as critical. Affected by this vulnerability is some unknown processing. The manipulation with an unknown input leads to a unrestricted upload vulnerability. The CWE definition for the vulnerability is CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is known as CVE-2025-34083 since 04/15/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are unknown but a public exploit is available. MITRE ATT&CK project uses the attack technique T1608.002 for this issue.

It is possible to download the exploit at github.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-20762). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• WordPress Plugin

Vendor

• AitThemes

Name

• AIT CSV Import Export Plugin

Version

• 3.0.0
• 3.0.1
• 3.0.2
• 3.0.3

CPE 2.3info

• 🔒
• 🔒
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CPE 2.2info

• 🔒
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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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