CVE-2026-15306 is a reflected Cross-Site Scripting vulnerability in the Product Feed Manager For WooCommerce – Sell on 200+ Online Marketplaces plugin for WordPress. The issue exists in the 's' search parameter, which does not properly sanitize or escape user input before rendering it in web pages. This allows unauthenticated attackers to inject malicious scripts that execute in the context of a victim's browser if they are tricked into clicking a crafted link. The vulnerability affects all versions up to and including 7.6.1. No official patch or remediation guidance is currently available.

Successful exploitation can lead to the execution of arbitrary scripts in the context of the victim's browser, potentially resulting in information disclosure or session hijacking. The vulnerability requires user interaction (clicking a malicious link) and does not require authentication. There is no indication of impact on availability. The CVSS vector indicates low attack complexity, no privileges required, user interaction required, and partial confidentiality and integrity impact.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should exercise caution with links containing the 's' parameter from untrusted sources. Consider implementing web application firewall (WAF) rules to detect and block malicious payloads targeting this parameter. Monitor official vendor channels for updates or patches.