CVE-2026-7517

Impact

The Custom Payment Gateways for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'alg_wc_cpg_input_fields' parameter in all versions up to, and including, 2.1.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This vulnerability is exploitable by unauthenticated guest users submitting a crafted checkout POST request, requiring no custom input fields to be configured in the plugin.

Affected packages

This record carries no package version data, so it cannot be matched against a dependency list automatically. Read the advisory and compare your version by hand.

Weakness classification

References

• NVD record
• CVE.org record
• https://plugins.trac.wordpress.org/browser/custom-payment-gateways-woocommerce/tags/2.1.0/includes/class-alg-wc-custom-payment-gateways-input-fields.php#L241
• https://plugins.trac.wordpress.org/browser/custom-payment-gateways-woocommerce/tags/2.1.0/includes/class-alg-wc-custom-payment-gateways-input-fields.php#L264
• https://plugins.trac.wordpress.org/browser/custom-payment-gateways-woocommerce/tags/2.1.0/includes/class-alg-wc-custom-payment-gateways-input-fields.php#L86
• https://plugins.trac.wordpress.org/browser/custom-payment-gateways-woocommerce/trunk/includes/class-alg-wc-custom-payment-gateways-input-fields.php#L241
• https://plugins.trac.wordpress.org/browser/custom-payment-gateways-woocommerce/trunk/includes/class-alg-wc-custom-payment-gateways-input-fields.php#L264
• https://plugins.trac.wordpress.org/browser/custom-payment-gateways-woocommerce/trunk/includes/class-alg-wc-custom-payment-gateways-input-fields.php#L86
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3578163%40custom-payment-gateways-woocommerce&new=3578163%40custom-payment-gateways-woocommerce&sfp_email=&sfph_mail=
• https://www.wordfence.com/threat-intel/vulnerabilities/id/1defa728-9f9d-4e8f-8f6c-432c615da7f5?source=cve