Vulnerability Description
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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/custom-payment-gateways-woocommerce/t
- https://plugins.trac.wordpress.org/browser/custom-payment-gateways-woocommerce/t
- https://plugins.trac.wordpress.org/browser/custom-payment-gateways-woocommerce/t
- https://plugins.trac.wordpress.org/browser/custom-payment-gateways-woocommerce/t
- https://plugins.trac.wordpress.org/browser/custom-payment-gateways-woocommerce/t
- https://plugins.trac.wordpress.org/browser/custom-payment-gateways-woocommerce/t
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old
- https://www.wordfence.com/threat-intel/vulnerabilities/id/1defa728-9f9d-4e8f-8f6
FAQ
What is CVE-2026-7517?
CVE-2026-7517 is a vulnerability with a CVSS score of 7.2 (HIGH). 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 du...
How severe is CVE-2026-7517?
CVE-2026-7517 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-7517?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.