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

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. 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

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