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Vulnerability record · CVE-2026-14487 · published 8 July 2026

CVE-2026-14487: Path traversal vulnerability

The Simple Coherent Form plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the removeUploadDir function in all versions up to, and including, 2.4.13. 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). The scf_get_id_upload endpoint freely issues a valid scf_upload_file_removal nonce to any unauthenticated visitor, and the removal endpoint's secondary hash check is forgeable offline because it relies on a hardcoded salt embedded in the plugin source, meaning neither control presents a real authorization boundary.

9.1 CVSS 3.1 Critical EPSS 1.2% · top 34.0% CWE-22 · Path traversal Deferred
9.1CVSS 3.1 base score
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
6References
8 Jul 2026Last modified by NVD

Description

The Simple Coherent Form plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the removeUploadDir function in all versions up to, and including, 2.4.13. 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). The scf_get_id_upload endpoint freely issues a valid scf_upload_file_removal nonce to any unauthenticated visitor, and the removal endpoint's secondary hash check is forgeable offline because it relies on a hardcoded salt embedded in the plugin source, meaning neither control presents a real authorization boundary.

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

References

LinkTags
https://plugins.trac.wordpress.org/browser/simple-coherent-form/tags/2.4.13/includes/fields/file.php#L1387
https://plugins.trac.wordpress.org/browser/simple-coherent-form/tags/2.4.13/includes/fields/file.php#L1494
https://plugins.trac.wordpress.org/browser/simple-coherent-form/tags/2.4.13/includes/fields/file.php#L1521
https://plugins.trac.wordpress.org/browser/simple-coherent-form/tags/2.4.13/includes/fields/file.php#L1544
https://plugins.trac.wordpress.org/browser/simple-coherent-form/tags/2.4.13/includes/fields/file.php#L43
https://www.wordfence.com/threat-intel/vulnerabilities/id/f4831e75-dc0e-4d6f-b2cb-8498d8629319?source=cve

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Source: NIST National Vulnerability Database (record CVE-2026-14487), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.