# CVE-2026-77793: RegistrationMagic payment bypass via missing price validation

Source: https://junglewise.ai/threats/cve-2026-77793-registrationmagic-payment-bypass-via-missing-price-validation  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-02. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-77793 · Severity: medium · CVSS 5.3 · Published 2026-09-02

RegistrationMagic is a WordPress plugin that allows website administrators to create user registration forms with paid membership options. An unauthenticated attacker can bypass payment validation and activate a free account without paying by omitting or zeroing out price fields in the registration request, immediately gaining access to premium features intended only for paying customers.

## Quick answers

**Is CVE-2026-77793 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-77793 being exploited in the wild.

**How severe is CVE-2026-77793?** Medium severity, with a CVSS score of 5.3, published 2 September 2026.

**Which products and versions are affected?** RegistrationMagic RegistrationMagic before 6.0.9.9.

**Is there a fix for CVE-2026-77793?** A patch was published on 2026-09-02: Version 6.0.9.9 released with server-side price validation Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-77793 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-77793?** Check whether anything you run is named in the advisory. 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

RegistrationMagic fails to validate the total price of paid registrations on the server side, relying instead on client-side price parameters that an attacker can freely manipulate. The vulnerability affects the plugin's payment processing logic when handling Price fields in registration forms. An unauthenticated attacker can submit a registration request with the quantity set to 0 or the price field omitted entirely, causing the plugin to record the transaction as "Completed" for $0.00 while still activating the user account. No payment gateway communication occurs in these cases. The vulnerability was fixed in version 6.0.9.9; versions up to 6.0.9.8 are affected.

## Affected products

- RegistrationMagic RegistrationMagic before 6.0.9.9

## Timeline

- 2026-08-31: disclosed
- 2026-09-02: patched: Version 6.0.9.9 released with server-side price validation

## References

- [https://wordpress.org/plugins](https://wordpress.org/plugins)
- [https://wpscan.com/vulnerability/83f11a27-be9c-4b27-b4ea-d0c58e0d7829/](https://wpscan.com/vulnerability/83f11a27-be9c-4b27-b4ea-d0c58e0d7829/)