What is the CVSS score of EUVD-2026-36973?

EUVD-2026-36973 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N. EPSS exploitation probability: 0.2%.

Which versions of Redsys for WooCommerce Light are affected by EUVD-2026-36973?

The Redsys for WooCommerce Light plugin (versions up to 7.0.0) contains a broken access control flaw that allows unauthenticated attackers to invoke privileged payment gateway functions without…

How to fix or mitigate EUVD-2026-36973?

Within 24 hours: Identify all WordPress instances running Redsys for WooCommerce Light plugin version 7.0.0 or earlier and disable the plugin immediately pending security resolution. Within 7 days: Implement Web Application Firewall (WAF) rules restricting access to the vulnerable plugin endpoints to authorized administrator IP ranges only, or migrate to an alternative payment gateway provider with current security patches. Within 30 days: Monitor Patchstack security advisories (EUVD-2026-36973) for vendor patch release; establish a process to deploy security patches within 48 hours of availability.

Redsys for WooCommerce Light EUVD-2026-36973

| CVE-2026-40741 HIGH

Missing Authorization (CWE-862)

2026-06-15 Patchstack

GHSA-785h-w333-7p44

WordPress Authentication Bypass Wordpress Plugin Redsys For Woocommerce Light

7.5

CVSS 3.1 · Vendor: Patchstack

Severity by source

Vendor (Patchstack) PRIMARY

7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

vuln.today AI

7.5 HIGH

Unauthenticated network-reachable missing-authorization flaw in a WordPress plugin endpoint; integrity-only impact on payment state, no disclosed confidentiality or availability effect.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Lifecycle Timeline

Analysis Generated

Jun 15, 2026 - 22:14 vuln.today

CVE Published

Jun 15, 2026 - 20:18 cve.org

HIGH 7.5

DescriptionCVE.org

Unauthenticated Broken Access Control in Redsys for WooCommerce Light <= 7.0.0 versions.

AnalysisAI

Broken access control in the Redsys for WooCommerce Light WordPress plugin (versions up to and including 7.0.0) allows remote unauthenticated attackers to invoke privileged functionality without proper authorization checks, leading to integrity impact on payment gateway operations. The flaw stems from missing authorization (CWE-862) on plugin endpoints, and at time of analysis no public exploit was identified, though the CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N) makes it trivially reachable. The vulnerability was reported by Patchstack and tracked as EUVD-2026-36973.

Technical ContextAI

Redsys for WooCommerce Light (slug woo-redsys-gateway-light, authored by Jose Conti per the CPE jose_conti:redsys_for_woocommerce_light) is a WordPress payment gateway plugin that integrates the Spanish Redsys card-payment platform into WooCommerce checkouts. CWE-862 (Missing Authorization) means an action handler - typically a WordPress AJAX endpoint, REST route, or admin-post hook - fails to verify the caller's capability or nonce before executing privileged logic. In payment-gateway plugins this class of bug commonly exposes order-state or transaction-handling functions (for example, marking an order as paid, retrieving transaction data, or altering gateway configuration) to anonymous HTTP callers.

RemediationAI

No vendor-released patch version is independently confirmed in the available data - the Patchstack advisory identifies 7.0.0 as the last vulnerable release but does not cite a specific fixed version in the input, so administrators should consult the Patchstack record at https://patchstack.com/database/wordpress/plugin/woo-redsys-gateway-light/vulnerability/wordpress-redsys-for-woocommerce-light-plugin-7-0-0-broken-access-control-vulnerability and the plugin's WordPress.org listing for an upgrade above 7.0.0 and apply it immediately. Until a confirmed patched release is installed, compensating controls include deactivating the woo-redsys-gateway-light plugin (this disables Redsys card payments on the store and will break checkout for that gateway), restricting access to wp-admin/admin-ajax.php and the plugin's REST routes via a Web Application Firewall rule that blocks unauthenticated requests to known plugin action names (risk: legitimate gateway callbacks from Redsys may also be filtered if rules are too broad, so allowlist the Redsys notification IP ranges), or temporarily switching WooCommerce to an alternative payment gateway. Patchstack mDVPN/vPatch subscribers receive a virtual patch via their firewall integration as a stopgap.