CVE-2026-15897 Privilege escalation in Super Forms – Drag & Drop Form Builder
Authenticated subscribers can escalate privileges to administrator by manipulating user_id parameters in the Super Forms plugin, leading to full site compromise.
- 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-2026-15897?
CVE-2026-15897 is a high-severity vulnerability in WebRehab Super Forms – Drag & Drop Form Builder, published on 2 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Super Forms – Drag & Drop Form Builder plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 6.3.316. This is due to the Register & Login add-on's before_email_success_msg() function, in its register_login_action='update' flow, trusting an attacker-supplied user_id value and passing it to wp_update_user() without any ownership or capability check. Because the super_save_form AJAX action also enforces no capability check, any authenticated user with Subscriber-level access and above can create the required malicious form (register_login_action='update' with register_login_user_id_update='true') and then submit it with user_id set to an administrator's ID along with a new user_pass/user_email. This makes it possible for authenticated attackers with Subscriber-level access and above to overwrite the credentials of arbitrary existing accounts — including administrators — resulting in account takeover and full site compromise.
Weakness: CWE-269
Which versions are affected by CVE-2026-15897?
How do I fix CVE-2026-15897?
No fix has been published for CVE-2026-15897 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-15897 being exploited?
There is no known exploitation of CVE-2026-15897 in the wild and no public exploit code.
Sources
Also known as GHSA-h8h9-7p7r-7rpq.