davidfcarr Quick Playground Plugin up to 1.3.4 on WordPress POST Parameter wp-config.php qckply_data filename path traversal

Summaryinfo

A vulnerability marked as critical has been reported in davidfcarr Quick Playground Plugin up to 1.3.4 on WordPress. The affected element is the function qckply_data of the file wp-config.php of the component POST Parameter Handler. The manipulation of the argument filename leads to path traversal. This vulnerability is listed as CVE-2026-2500. The attack may be initiated remotely. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in davidfcarr Quick Playground Plugin up to 1.3.4 on WordPress and classified as problematic. This issue affects the function qckply_data of the file wp-config.php of the component POST Parameter Handler. The manipulation of the argument filename with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality. The summary by CVE is:

The Quick Playground plugin for WordPress is vulnerable to Path Traversal in all versions up to, and including, 1.3.4. This is due to the `qckply_data()` function passing the user-supplied `filename` POST parameter directly to `file_get_contents()` without any validation, sanitization, or path restriction. This makes it possible for authenticated attackers, with Administrator-level access and above, to read arbitrary files on the server, such as `wp-config.php` or `/etc/passwd`, which can contain sensitive information. Note: This vulnerability is only exploitable when the site has been synced with WordPress Playground (the `is_qckply_clone` option is set) or when running on `playground.wordpress.net`.

The weakness was presented by Pablo Santiago. It is possible to read the advisory at wordfence.com. The identification of this vulnerability is CVE-2026-2500 since 02/13/2026. The exploitation is known to be difficult. The attack may be initiated remotely. Additional levels of successful authentication are necessary for exploitation. 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 1.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-34953). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• WordPress Plugin

Vendor

• davidfcarr

Name

• Quick Playground Plugin

Version

• 1.3.0
• 1.3.1
• 1.3.2
• 1.3.3
• 1.3.4

CPE 2.3info

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CPE 2.2info

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Be aware that VulDB is the high quality source for vulnerability data.

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