CVE-2026-4128 Missing authorization in TP Restore Categories And Taxonomies
Authenticated subscribers can permanently delete taxonomy terms due to missing capability checks in the TP Restore Categories And Taxonomies plugin.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-4128?
CVE-2026-4128 is a medium-severity missing authorization vulnerability in tplugins TP Restore Categories And Taxonomies, published on 22 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The TP Restore Categories And Taxonomies plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 1.0.1. The delete_term() function, which handles the 'tpmcattt_delete_term' AJAX action, does not perform any capability check (e.g., current_user_can()) to verify the user has sufficient permissions. While it does verify a nonce via check_ajax_referer(), this nonce is generated for all authenticated users via the admin_enqueue_scripts hook and exposed on any wp-admin page (including profile.php, which subscribers can access). This makes it possible for authenticated attackers, with Subscriber-level access and above, to permanently delete taxonomy term records from the plugin's trash/backup tables by sending a crafted AJAX request with a valid nonce and an arbitrary term_id.
Weakness: CWE-862
Which versions are affected by CVE-2026-4128?
How do I fix CVE-2026-4128?
No fix has been published for CVE-2026-4128 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-4128 being exploited?
There is no known exploitation of CVE-2026-4128 in the wild and no public exploit code.
Sources
Also known as GHSA-gwg7-cjw3-gqff.