Fengoffice Feng Office up to 3.11.13.11/4.2.1.2 File FilesController.class.php upload_document_image url server-side request forgery

Summaryinfo

A vulnerability identified as critical has been detected in Fengoffice Feng Office up to 3.11.13.11/4.2.1.2. Affected is the function upload_document_image of the file application/controllers/FilesController.class.php of the component File Handler. This manipulation of the argument url causes server-side request forgery. This vulnerability is registered as CVE-2026-124500. Remote exploitation of the attack is possible. Furthermore, an exploit is available. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability has been found in Fengoffice Feng Office up to 3.11.13.11/4.2.1.2 and classified as critical. Affected by this vulnerability is the function upload_document_image of the file application/controllers/FilesController.class.php of the component File Handler. The manipulation of the argument url with an unknown input leads to a server-side request forgery vulnerability. The CWE definition for the vulnerability is CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is shared at gist.github.com. This vulnerability is known as CVE-2026-124500. The exploitation appears to be easy. The attack can be launched remotely. Technical details and also a public exploit are known.

It is possible to download the exploit at gist.github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way. By approaching the search of inurl:application/controllers/FilesController.class.php it is possible to find vulnerable targets with Google Hacking.

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

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

• Fengoffice

Name

• Feng Office

Version

• 3.11.13.0
• 3.11.13.1
• 3.11.13.2
• 3.11.13.3
• 3.11.13.4
• 3.11.13.5
• 3.11.13.6
• 3.11.13.7
• 3.11.13.8
• 3.11.13.9
• 3.11.13.10
• 3.11.13.11
• 4.2.1.0
• 4.2.1.1
• 4.2.1.2

CPE 2.3info

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CPE 2.2info

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Exploitinginfo

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Entryinfo

Submitinfo

Accepted

• Submit #1033342: Fengoffice Feng Office 3.11.8.0 Server-Side Request Forgery (by 1marsh1)

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion