CVE-2026-19991 PUBLISHED

UsersWP <= 1.2.70 - Authenticated (Subscriber+) Arbitrary File Deletion

Assigner: Wordfence
Reserved: 16.08.2026 Published: 11.09.2026 Updated: 11.09.2026

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.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
CVSS Score: 8.1

Product Status

Vendor stiofansisland
Product UsersWP – Front-end login form, User Registration, User Profile & Members Directory plugin for WP
Versions Default: unaffected
  • affected from 0 to 1.2.70 (incl.)

Credits

  • daroo finder

References

Problem Types

  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') CWE