eGovFramework egovframe-common-components up to 4.3.1 /utl/wed/insertImage.do unrestricted upload

Summaryinfo

A vulnerability was found in eGovFramework egovframe-common-components up to 4.3.1. It has been rated as critical. Affected is an unknown function of the file /utl/wed/insertImage.do. The manipulation leads to unrestricted upload. This vulnerability is traded as CVE-2025-34336. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in eGovFramework egovframe-common-components up to 4.3.1 and classified as critical. This issue affects an unknown function of the file /utl/wed/insertImage.do. The manipulation with an unknown input leads to a unrestricted upload vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

eGovFramework/egovframe-common-components versions up to and including 4.3.1 contain an unauthenticated file upload vulnerability via the /utl/wed/insertImage.do and /utl/wed/insertImageCk.do image upload endpoints. These controllers accept multipart requests without authentication, pass the uploaded content to a shared upload helper, and store the file on the server under a framework-controlled path. The framework then returns a download URL that can be used to retrieve the uploaded content, including an attacker-controlled Content-Type within the limits of the image upload functionality. While a filename extension whitelist is enforced, the attacker fully controls the file contents. The response MIME type used is also attacker-controlled when the file is served up to version < 4.1.2. Since version 4.1.2, it is possible to download any image uploaded with any whitelisted content type. But any file uploaded other than an image will be served with the `application/octet-stream` content type (the content type is no longer controlled by the attacker since version 4.1.2). This enables an unauthenticated attacker to use any affected application as a persistent file hosting service for arbitrary content under the application's origin. KISA/KrCERT has identified this unpatched vulnerability as "KVE-2023-5280."

The weakness was shared by Pierre Barre. The advisory is shared at egovframe.go.kr. The identification of this vulnerability is CVE-2025-34336 since 04/15/2025. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/19/2025). MITRE ATT&CK project uses the attack technique T1608.002 for this issue.

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

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

Productinfo

Vendor

• eGovFramework

Name

• egovframe-common-components

Version

• 4.3.0
• 4.3.1

CPE 2.3info

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CPE 2.2info

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

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