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Description

The User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 5.1.5. This is due to missing ownership validation on a user-controlled attachment ID, allowing the plugin to store and subsequently delete arbitrary media attachments without verifying that the referenced attachment belongs to the requesting user. This makes it possible for authenticated attackers, with subscriber-level access and above, to permanently delete arbitrary media attachments uploaded by any other user, including administrators.

PUBLISHED Reserved 2026-05-01 | Published 2026-05-28 | Updated 2026-05-28 | Assigner Wordfence




MEDIUM: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Problem types

CWE-639 Authorization Bypass Through User-Controlled Key

Product status

Default status
unaffected

Any version
affected

Timeline

2026-05-01:Vendor Notified
2026-05-27:Disclosed

Credits

Supakiad S. finder

References

www.wordfence.com/...-edf4-4ae2-a2e7-31ccb3b52d71?source=cve

plugins.trac.wordpress.org/...frontend/class-ur-frontend.php

plugins.trac.wordpress.org/...frontend/class-ur-frontend.php

plugins.trac.wordpress.org/...includes/functions-ur-core.php

plugins.trac.wordpress.org/...frontend/class-ur-frontend.php

cve.org (CVE-2026-7651)

nvd.nist.gov (CVE-2026-7651)

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