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Vulnerability record · CVE-2026-15990 · published 26 August 2026

CVE-2026-15990: Path traversal vulnerability

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.

7.5 CVSS 3.1 High EPSS 0.69% · top 49.2% CWE-22 · Path traversal Deferred
7.5CVSS 3.1 base score
0.69%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
27 Aug 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References

LinkTags
https://formidableforms.com/changelog/charts-2-0-2/
https://www.wordfence.com/threat-intel/vulnerabilities/id/b24bd192-c45b-479c-9e5a-7b83799f8f99?source=cve

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Source: NIST National Vulnerability Database (record CVE-2026-15990), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.