# CVE-2026-4094: RealMag777 FOX Currency Switcher unauthorized data loss in admin_head

Source: https://junglewise.ai/threats/cve-2026-4094-realmag777-fox-currency-switcher-unauthorized-data-loss-in-admin  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-15. Updated: 2026-05-15  
License: CC BY 4.0 with a link back

CVE-2026-4094 · Severity: high · CVSS 8.1 · Published 2026-05-15

The FOX Currency Switcher plugin for WooCommerce is vulnerable to a security flaw that allows low-level users to delete the website's entire multi-currency configuration. This plugin is used by online stores to display prices in different currencies; an exploit would disrupt the shopping experience and require manual restoration of currency settings. The attack can be carried out by anyone with a basic account on the site or by tricking an administrator into clicking a malicious link.

Technologies: [RealMag777 FOX – Currency Switcher Professional for WooCommerce](https://junglewise.ai/threats/technologies/fox-currency-switcher-professional-for-woocommerce). Vendors: [RealMag777](https://junglewise.ai/threats/vendors/realmag777).

## Quick answers

**Is CVE-2026-4094 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-4094 being exploited in the wild.

**How severe is CVE-2026-4094?** High severity, with a CVSS score of 8.1, published 15 May 2026.

**Which products and versions are affected?** RealMag777 FOX – Currency Switcher Professional for WooCommerce Up to, and including, 1.4.5.

**Is there a fix for CVE-2026-4094?** 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-2026-4094 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-4094?** Check whether you run RealMag777 FOX – Currency Switcher Professional for WooCommerce 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 stems from a missing capability check and a lack of nonce verification in the 'admin_head' function within the FOX Currency Switcher plugin. Authenticated attackers with Contributor-level access (or Subscriber-level if wp-admin access is enabled) can trigger a reset of the multi-currency configuration by appending the 'woocs_reset' parameter to any administrative page URL. Additionally, the absence of a CSRF nonce makes the function exploitable via Cross-Site Request Forgery, allowing an unauthenticated attacker to achieve the same result by tricking a logged-in administrator into visiting a crafted URL. The issue is fixed in versions following 1.4.5.

## Affected products

- RealMag777 FOX – Currency Switcher Professional for WooCommerce Up to, and including, 1.4.5

## Timeline

- 2026-05-15: disclosed
- 2026-05-15: advisory

## References

- [https://plugins.trac.wordpress.org/browser/woocommerce-currency-switcher/trunk/classes/woocs.php](https://plugins.trac.wordpress.org/browser/woocommerce-currency-switcher/trunk/classes/woocs.php)
- [https://plugins.trac.wordpress.org/browser/woocommerce-currency-switcher/trunk/classes/woocs.php](https://plugins.trac.wordpress.org/browser/woocommerce-currency-switcher/trunk/classes/woocs.php)
- [https://plugins.trac.wordpress.org/changeset/3483839/](https://plugins.trac.wordpress.org/changeset/3483839/)
- [https://www.wordfence.com/threat-intel/vulnerabilities/id/6eb9d68c-c081-484e-ad5d-5eabcfa6d6f0?source=cve](https://www.wordfence.com/threat-intel/vulnerabilities/id/6eb9d68c-c081-484e-ad5d-5eabcfa6d6f0?source=cve)

## Related threats

- [RealMag777 FOX unauthenticated XSS in WooCommerce Currency Switcher](https://junglewise.ai/threats/cve-2026-57319-realmag777-fox-unauthenticated-xss-in-woocommerce-currency)
- [WordPress FOX Currency Switcher auth bypass in fixed_user_role.php](https://junglewise.ai/threats/cve-2026-9241-wordpress-fox-currency-switcher-auth-bypass-in-fixed-user-role-php)
- [RealMag777 FOX WooCommerce Currency Switcher missing authorization](https://junglewise.ai/threats/cve-2026-39501-realmag777-fox-woocommerce-currency-switcher-missing)