XSS in Paymentplugins Payment Plugins For Stripe Woocommerce
CVE-2026-89100
The Payment Plugins for Stripe WooCommerce plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via '#response' URL Fragment in all versions up to, and including, 4.0.17 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. Exploitation requires that the 'Generic Errors' setting is unchecked, causing getErrorMessage() to return the raw Stripe error string unchanged rather than substituting a mapped safe message.
Vulnerability class: XSS (Cross-Site Scripting)
Published .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- www.wordfence.com/threat-intel/vulnerabilities/id/57c64bb5-4849-4166-9792-c079b…
- plugins.trac.wordpress.org/browser/woo-stripe-payment/tags/4.0.14/assets/build/…
- plugins.trac.wordpress.org/browser/woo-stripe-payment/tags/4.0.14/assets/build/…
- plugins.trac.wordpress.org/browser/woo-stripe-payment/tags/4.0.14/assets/build/…
- plugins.trac.wordpress.org/browser/woo-stripe-payment/tags/4.0.14/assets/build/…
- plugins.trac.wordpress.org/changeset/3726506/woo-stripe-payment/trunk/assets/bu…
Frequently asked questions
- What is CVE-2026-89100?
- CVE-2026-89100 is a medium-severity vulnerability in Paymentplugins Payment Plugins For Stripe Woocommerce, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-10-10.
- How severe is CVE-2026-89100?
- Medium severity. CVSS v3 base score is 6.1 out of 10.