CVE-2026-18595
Received Received - Intake

Stored XSS in WP-Lister Lite for eBay WordPress Plugin

Publication date: 2026-09-16

Last updated on: 2026-09-16

Assigner: Wordfence

Description
The WP-Lister Lite for eBay plugin for WordPress is vulnerable to Stored Cross-Site Scripting via AJAX Cron Handler Request Parameter in all versions up to, and including, 3.8.9 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.

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Meta Information

Published
2026-09-16
Last Modified
2026-09-16
Generated
2026-09-16
AI Q&A
2026-09-16
EPSS Evaluated
N/A
NVD
CVE-2026-18595
EUVD
EUVD-2026-80099

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
wp-lister wp-lister_lite_for_ebay to 3.8.9 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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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.

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Executive Summary

The WP-Lister Lite for eBay plugin for WordPress has a stored cross-site scripting (XSS) vulnerability. This flaw exists due to insufficient input sanitization and output escaping in the AJAX Cron Handler Request Parameter. Unauthenticated attackers can inject malicious scripts into pages, which execute when users access those pages.

Detection Guidance

This vulnerability involves Stored Cross-Site Scripting via the WP-Lister Lite for eBay plugin. Detection requires checking for the plugin's presence and version. Inspect WordPress installations for the plugin and verify if it is version 3.8.9 or lower. Use commands like 'wp plugin list' in WP-CLI or check the WordPress admin panel under Plugins.

Impact Analysis

This vulnerability allows attackers to inject arbitrary web scripts into pages. If exploited, it could lead to unauthorized actions on behalf of users, data theft, or defacement of affected websites. Users accessing compromised pages may have their sessions hijacked or sensitive information exposed.

Compliance Impact

This vulnerability could lead to data breaches, exposing user data and violating privacy regulations like GDPR and HIPAA. Organizations using the affected plugin may face legal penalties, reputational damage, and loss of customer trust due to non-compliance with data protection requirements.

Mitigation Strategies

Immediately update the WP-Lister Lite for eBay plugin to the latest version if available. If no update exists, consider disabling or removing the plugin until a patch is released. Ensure input sanitization and output escaping are properly configured in your WordPress environment.

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