crmperks Database for Contact Form 7, WPforms, Elementor Forms Plugin JSON wp-config.php view_page path traversal

Summaryinfo

A vulnerability, which was classified as critical, has been found in crmperks Database for Contact Form 7, WPforms, Elementor Forms Plugin up to 1.5.1 on WordPress. The affected element is the function view_page of the file wp-config.php of the component JSON Handler. This manipulation causes path traversal. The identification of this vulnerability is CVE-2026-9843. It is possible to initiate the attack remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in crmperks Database for Contact Form 7, WPforms, Elementor Forms Plugin up to 1.5.1 on WordPress. It has been declared as critical. Affected by this vulnerability is the function view_page of the file wp-config.php of the component JSON Handler. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect integrity, and availability. The summary by CVE is:

The Database for Contact Form 7, WPforms, Elementor forms plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the view_page function in all versions up to, and including, 1.5.1. This makes it possible for unauthenticated attackers to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). Successful exploitation requires an administrator to view or edit the poisoned form entry, at which point PHP's bracket parser reshapes the attacker-crafted JSON key to bypass the stored-path isset check and trigger deletion of the traversal-specified file.

The weakness was shared by daroo. It is possible to read the advisory at wordfence.com. This vulnerability is known as CVE-2026-9843 since 05/28/2026. 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 attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

By approaching the search of inurl:wp-config.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 1.5.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-38104). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• WordPress Plugin

Vendor

• crmperks

Name

• Database for Contact Form 7, WPforms, Elementor Forms Plugin

Version

• 1.5.0
• 1.5.1

CPE 2.3info

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CPE 2.2info

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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