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Vulnerability record · CVE-2026-13492 · published 9 July 2026

CVE-2026-13492: Path traversal vulnerability

The UsersWP plugin for WordPress is vulnerable to Arbitrary File Deletion in versions up to, and including, 1.2.65. This is due to insufficient validation of file-field values in the UsersWP_Validation::validate_fields() function (which falls through to sanitize_text_field() for fields of type 'file', leaving directory-traversal sequences intact) combined with the UsersWP_Forms::upload_file_remove() AJAX handler building the deletion target from the uploads basedir concatenated with the attacker-controlled metadata value without any realpath canonicalization or uploads-directory boundary check before calling unlink(). This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete arbitrary files on the affected site's server, including wp-config.

8.8 CVSS 3.1 High EPSS 0.69% · top 49.4% CWE-22 · Path traversal Deferred
8.8CVSS 3.1 base score
0.69%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
8References
10 Jul 2026Last modified by NVD

Description

The UsersWP plugin for WordPress is vulnerable to Arbitrary File Deletion in versions up to, and including, 1.2.65. This is due to insufficient validation of file-field values in the UsersWP_Validation::validate_fields() function (which falls through to sanitize_text_field() for fields of type 'file', leaving directory-traversal sequences intact) combined with the UsersWP_Forms::upload_file_remove() AJAX handler building the deletion target from the uploads basedir concatenated with the attacker-controlled metadata value without any realpath canonicalization or uploads-directory boundary check before calling unlink(). This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete arbitrary files on the affected site's server, including wp-config.

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

References

LinkTags
https://github.com/AyeCode/userswp/commit/ddb17ad30ff3384cda85c5f372db30b03bd45ac8
https://plugins.trac.wordpress.org/browser/userswp/tags/1.2.65/includes/class-forms.php#L1059
https://plugins.trac.wordpress.org/browser/userswp/tags/1.2.65/includes/class-forms.php#L1973
https://plugins.trac.wordpress.org/browser/userswp/tags/1.2.65/includes/class-forms.php#L2320
https://plugins.trac.wordpress.org/browser/userswp/tags/1.2.65/includes/class-forms.php#L2323
https://plugins.trac.wordpress.org/browser/userswp/tags/1.2.65/includes/class-validation.php#L190
https://plugins.trac.wordpress.org/changeset/3590340/userswp
https://www.wordfence.com/threat-intel/vulnerabilities/id/b6cf6390-480f-44e2-ae36-67e3398add33?source=cve

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Source: NIST National Vulnerability Database (record CVE-2026-13492), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.