Path Traversal in Stiofansisland Userswp – Front-End Login Form, User Registration, Profile & Members Directory Plugin For Wp
CVE-2026-13492
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (51.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/AyeCode/userswp/commit/ddb17ad30ff3384cda85c5f372db30b03bd45ac8
- plugins.trac.wordpress.org/browser/userswp/tags/1.2.65/includes/class-forms.php
- plugins.trac.wordpress.org/browser/userswp/tags/1.2.65/includes/class-forms.php
- plugins.trac.wordpress.org/browser/userswp/tags/1.2.65/includes/class-forms.php
- plugins.trac.wordpress.org/browser/userswp/tags/1.2.65/includes/class-forms.php
- plugins.trac.wordpress.org/browser/userswp/tags/1.2.65/includes/class-validatio…
- plugins.trac.wordpress.org/changeset/3590340/userswp
- www.wordfence.com/threat-intel/vulnerabilities/id/b6cf6390-480f-44e2-ae36-67e33…
Frequently asked questions
- What is CVE-2026-13492?
- CVE-2026-13492 is a high-severity vulnerability in Stiofansisland Userswp – Front-End Login Form, User Registration, Profile & Members Directory Plugin For Wp, classified under Path Traversal. CVSS score: 8.8/10. Published 2026-07-09.
- How severe is CVE-2026-13492?
- High severity. CVSS v3 base score is 8.8 out of 10.