Contact Form Drag and Drop Multiple File Upload for Contact Form 7 Plugin dnd_upload_cf7_upload deserialization

Summaryinfo

A vulnerability, which was classified as critical, has been found in Contact Form Drag and Drop Multiple File Upload for Contact Form 7 Plugin up to 1.3.8.7 on WordPress. This issue affects the function dnd_upload_cf7_upload. This manipulation causes deserialization. This vulnerability is registered as CVE-2025-2485. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability has been found in Contact Form Drag and Drop Multiple File Upload for Contact Form 7 Plugin up to 1.3.8.7 on WordPress and classified as critical. Affected by this vulnerability is the function dnd_upload_cf7_upload. The manipulation with an unknown input leads to a deserialization vulnerability. The CWE definition for the vulnerability is CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. As an impact it is known to affect integrity, and availability. The summary by CVE is:

The Drag and Drop Multiple File Upload for Contact Form 7 plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.3.8.7 via deserialization of untrusted input from the 'dnd_upload_cf7_upload' function. This makes it possible for attackers to inject a PHP Object through a PHAR file. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present. This vulnerability may be exploited by unauthenticated attackers when a form is present on the site with the file upload action. The Flamingo plugin must be installed and activated in order to exploit the vulnerability.

It is possible to read the advisory at wordfence.com. This vulnerability is known as CVE-2025-2485 since 03/17/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/13/2025).

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

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Productinfo

Type

• WordPress Plugin

Vendor

• Contact Form

Name

• Drag and Drop Multiple File Upload for Contact Form 7 Plugin

Version

• 1.3.8.0
• 1.3.8.1
• 1.3.8.2
• 1.3.8.3
• 1.3.8.4
• 1.3.8.5
• 1.3.8.6
• 1.3.8.7

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CPE 2.2info

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