The HurryTimer plugin for WordPress & WooCommerce suffers from a stored XSS vulnerability (CWE-79) due to improper neutralization of input during web page generation. Specifically, the campaign name field is not properly sanitized or escaped, enabling authenticated users with Contributor or higher privileges to inject arbitrary JavaScript code. This code executes in the context of users visiting the injected pages, potentially leading to session hijacking or other script-based attacks. The vulnerability affects all versions up to and including 2.11.2. The CVSS 3.1 base score is 6.4, reflecting network attack vector, low attack complexity, and privileges required at the contributor level.

An attacker with Contributor-level or higher access can inject malicious scripts into campaign names, which are stored and executed in users' browsers when they visit affected pages. This can lead to unauthorized actions performed in the context of the victim user, such as session theft or defacement. The impact is limited to confidentiality and integrity with no direct availability impact. No known exploits have been reported 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. Consider disabling or removing the HurryTimer plugin if possible to mitigate risk. Monitor official vendor channels for updates and apply patches promptly once available.