# CVE-2026-97219: MStore API WordPress plugin payment bypass via order status

Source: https://junglewise.ai/threats/cve-2026-97219-the-mstore-api-wordpress-plugin-before-4-22-1-does-not-restrict  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-02. Updated: 2026-10-05  
License: CC BY 4.0 with a link back

CVE-2026-97219 · Severity: medium · CVSS 4.3 · Published 2026-10-02

The MStore API WordPress plugin handles order processing for online stores. A vulnerability allows any customer with a registered account to change their unpaid order status to paid or fulfilled without actually paying, letting them obtain goods for free. This affects all installations before version 4.22.1.

## Quick answers

**Is CVE-2026-97219 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-97219 being exploited in the wild.

**How severe is CVE-2026-97219?** Medium severity, with a CVSS score of 4.3, published 2 October 2026.

**Which products and versions are affected?** MStore API before 4.22.1.

**Is there a fix for CVE-2026-97219?** Yes: fixed in 4.22.1. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-97219 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-97219?** Check whether you run MStore API 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.

## How to fix

- Fixed in 4.22.1

## Technical details

The plugin fails to validate which order fields authenticated users can modify, allowing customers to directly alter the order status field via API requests. Any user with a self-registerable account can change their own unpaid order to a paid or fulfilled state, bypassing payment validation. This is fixed in version 4.22.1.

## Affected products

- MStore API before 4.22.1

## Timeline

- 2026-09-30: disclosed
- 2026-10-02: advisory

## References

- [https://wordpress.org/plugins](https://wordpress.org/plugins)
- [https://wpscan.com/vulnerability/0787d00b-2263-465f-8f46-906741bf6629/](https://wpscan.com/vulnerability/0787d00b-2263-465f-8f46-906741bf6629/)