The Booster for WooCommerce plugin contains a stored XSS vulnerability due to improper neutralization of input in the 'wcj_product_barcode' shortcode. This allows authenticated users with contributor or higher privileges to inject arbitrary JavaScript via the 'color' attribute, which executes in the context of users viewing the injected pages. The vulnerability affects all versions up to 7.1.6. The CVSS 3.1 base score is 6.4 (medium), with network attack vector, low attack complexity, requiring privileges, no user interaction, and impacts confidentiality and integrity with no availability impact. No patch or official remediation guidance is currently available.

An attacker with contributor-level or higher access can inject persistent malicious scripts into pages via the vulnerable shortcode. This can lead to unauthorized actions performed in the context of other users, potentially compromising user data confidentiality and integrity. There is no direct impact on availability. No known active exploitation has been reported.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict contributor-level permissions to trusted users only and consider disabling or removing the vulnerable shortcode if possible to reduce risk.