# CVE-2026-15257: RegistrationMagic WordPress plugin IDOR in submission editing

Source: https://junglewise.ai/threats/cve-2026-15257-registrationmagic-wordpress-plugin-idor-in-submission-editing  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-30. Updated: 2026-07-30  
License: CC BY 4.0 with a link back

CVE-2026-15257 · Severity: info · CVSS 5.3 · Published 2026-07-30

RegistrationMagic is a WordPress plugin used to create custom registration forms and manage user submissions. A security flaw allows unauthenticated individuals to modify other users' form submissions and change the profile information (such as names) of non-administrator accounts. This could lead to unauthorized data modification and disruption of user profile integrity on the website.

Technologies: [Metagauss RegistrationMagic](https://junglewise.ai/threats/technologies/registrationmagic). Vendors: [Metagauss](https://junglewise.ai/threats/vendors/metagauss).

## Quick answers

**Is CVE-2026-15257 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-15257 being exploited in the wild.

**How severe is CVE-2026-15257?** Informational severity, with a CVSS score of 5.3, published 30 July 2026.

**Which products and versions are affected?** Metagauss RegistrationMagic < 6.0.9.4.

**Is there a fix for CVE-2026-15257?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-15257 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-15257?** Check whether you run Metagauss RegistrationMagic at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is an Insecure Direct Object Reference (IDOR) within the front-end submission-editing functionality of the RegistrationMagic plugin. Specifically, the plugin does not validate the ownership or authorization of a user attempting to edit a submission via the 'rm_user_form_edit_sub' action, nor does it use nonces to prevent CSRF or unauthorized requests. An unauthenticated attacker can send a crafted POST request to the site's submission page, targeting a specific 'submission_id'. If the submission is linked to a non-administrator WordPress account via an email address, the attacker can overwrite both the form data and the associated WordPress user's profile fields (first name, last name, and display name). This issue is resolved in version 6.0.9.4.

## Affected products

- Metagauss RegistrationMagic < 6.0.9.4

## Timeline

- 2026-07-10: disclosed: Publicly published by WPScan
- 2026-07-30: advisory: NVD published the CVE record

## References

- [https://wpscan.com/vulnerability/fe6d0f6a-c2b4-4cd1-a7d2-e3afec76ebca/](https://wpscan.com/vulnerability/fe6d0f6a-c2b4-4cd1-a7d2-e3afec76ebca/)

## Related threats

- [RegistrationMagic IDOR in front-end form submissions](https://junglewise.ai/threats/cve-2026-15255-registrationmagic-idor-in-front-end-form-submissions)
- [Metagauss RegistrationMagic CSRF privilege escalation](https://junglewise.ai/threats/cve-2026-12158-metagauss-registrationmagic-csrf-privilege-escalation)
- [RegistrationMagic WordPress plugin authentication bypass in PayPal IPN handler](https://junglewise.ai/threats/cve-2026-9242-registrationmagic-wordpress-plugin-authentication-bypass-in-paypal)
- [RegistrationMagic authentication bypass in WordPress plugin](https://junglewise.ai/threats/cve-2026-49764-registrationmagic-authentication-bypass-in-wordpress-plugin)