CVE-2025-5530 is a stored cross-site scripting vulnerability in the WPC Smart Compare for WooCommerce plugin for WordPress, affecting all versions up to 6.4.6. The issue is due to improper neutralization of input in the 'shortcode_btn' shortcode, allowing authenticated users with contributor or higher privileges to inject malicious scripts via user-supplied shortcode attributes. These scripts execute in the context of users who access the injected pages, potentially leading to information disclosure or session hijacking. The vulnerability has a CVSS 3.1 base score of 6.4 (medium severity), with network attack vector, low attack complexity, and no user interaction required.

An attacker with contributor-level or higher access can inject persistent malicious scripts into pages via the vulnerable shortcode. When other users visit these pages, the injected scripts execute in their browsers, potentially leading to information disclosure or other client-side impacts. The vulnerability does not impact availability and requires authenticated access, limiting its scope. There are no reported active exploits in the wild.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict contributor-level access to trusted users only and consider disabling or removing the WPC Smart Compare for WooCommerce plugin if possible. Monitor for vendor updates regarding patches or official mitigations.