Strategy11 Formidable Charts Plugin up to 2.0.1 on WordPress frm_graph path traversal

Summaryinfo

A vulnerability identified as problematic has been detected in Strategy11 Formidable Charts Plugin up to 2.0.1. The affected element is an unknown function. Performing a manipulation of the argument frm_graph results in path traversal. This vulnerability is known as CVE-2026-15990. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability classified as problematic has been found in Strategy11 Formidable Charts Plugin up to 2.0.1. This affects some unknown functionality. The manipulation of the argument frm_graph with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality. The summary by CVE is:

The Formidable Charts plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 2.0.1 via the 'frm_graph' parameter. This makes it possible for unauthenticated attackers to read the contents of arbitrary files on the server, which can contain sensitive information. Successful exploitation requires Formidable Forms Lite, Formidable Forms Pro, and Formidable Charts to be active and requires the wp-content/uploads/frm-charts/ directory to exist, normally after an image-format chart is rendered.

It is possible to read the advisory at wordfence.com. This vulnerability is uniquely identified as CVE-2026-15990 since 07/16/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. 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 08/26/2026). The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

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

• Strategy11

Name

• Formidable Charts Plugin

Version

• 2.0.0
• 2.0.1

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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