CVE-2026-89100
Received Received - Intake

Reflected Cross-Site Scripting in Payment Plugins for Stripe WooCommerce

Publication date: 2026-10-10

Last updated on: 2026-10-10

Assigner: Wordfence

Description
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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-10-10
Last Modified
2026-10-10
Generated
2026-10-10
AI Q&A
2026-10-10
EPSS Evaluated
N/A
NVD
CVE-2026-89100
EUVD
EUVD-2026-96220

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
paymentplugins Payment Plugins for Stripe WooCommerce 0

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This is a Reflected Cross-Site Scripting (XSS) vulnerability in the Payment Plugins for Stripe WooCommerce plugin for WordPress. It exists in versions up to 4.0.17 due to insufficient input sanitization and output escaping via the '#response' URL fragment. Attackers can inject malicious scripts into pages that execute when users access the infected page. Exploitation requires the 'Generic Errors' setting to be unchecked, allowing raw Stripe error strings to be returned.

Detection Guidance

Detecting this vulnerability requires checking for the presence of the Payment Plugins for Stripe WooCommerce plugin versions up to 4.0.17. Use WordPress admin panel to verify plugin version or run commands like 'wp plugin list' if using WP-CLI. Inspect network traffic for reflected XSS attempts targeting the '#response' URL fragment.

Impact Analysis

Unauthenticated attackers could steal user sessions, perform actions on behalf of users, or deface websites. Users visiting a compromised page may have their data exposed or be redirected to malicious sites. This could lead to loss of trust, financial damage, or further compromise of user accounts.

Compliance Impact

This vulnerability could lead to unauthorized access to personal data, violating GDPR's data protection principles and HIPAA's security requirements. Organizations may face fines, legal action, or reputational damage for failing to protect sensitive user information from exposure or theft.

Mitigation Strategies

Immediately update the Payment Plugins for Stripe WooCommerce plugin to the latest version. Disable the plugin if an update is unavailable. Ensure the 'Generic Errors' setting is enabled to prevent raw error strings from being returned. Monitor for suspicious activity or unauthorized script injections.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-89100. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart