UsersWP <= 1.2.70 - Authenticated (Subscriber+) Arbitrary File Deletion
| CVE | CVE-2026-19991 |
|---|---|
| CVSS | 8.1 (High) |
| Publicly Published | September 10, 2026 |
| Last Updated | September 11, 2026 |
| Researcher |
daroo
|
Description
The UsersWP plugin for WordPress is vulnerable to Arbitrary File Deletion in versions up to, and including, 1.2.70 via the upload_file_remove() AJAX handler. The plugin stores the value of an account 'file' form field taken directly from $_POST when no real $_FILES upload is provided (process_account() calls uwp_validate_fields() and array_merges the result with the empty output of UsersWP_Files::validate_uploads()). At storage time the value is only checked with validate_file(), which passes any string that does not contain a literal '../'. When the value is later processed by upload_file_remove(), it is again gated with validate_file() and then normalized through uwp_get_file_relative_url(); that helper performs a global str_replace() of the uploads base URL against the stored URL, allowing a crafted URL containing embedded '..<uploads-baseurl>' tokens to collapse into '../../' traversal sequences after the last validation. The transformed value is then appended to the uploads base directory and passed to wp_delete_file() without any canonical containment check. 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.
References
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
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Vulnerability Details for UsersWP – Front-end login form, User Registration, User Profile & Members Directory plugin for WP
| Software Type | Plugin |
|---|---|
| Software Slug | userswp (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 1.2.71, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in UsersWP – Front-end login form, User Registration, User Profile & Members Directory plugin for WP
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