The WordPress plugin 'Ajax Load More – Infinite Scroll, Load More, & Lazy Load' contains a stored XSS vulnerability identified as CVE-2024-8505. This vulnerability is due to improper neutralization of alternate XSS syntax (CWE-87) in the 'button_label' parameter. Authenticated users with Contributor-level permissions or higher can inject arbitrary web scripts that persist and execute when other users view the injected content. The vulnerability affects all versions up to and including 7.1.2. The CVSS 3.1 base score is 6.4, reflecting network attack vector, low attack complexity, required privileges, no user interaction, and impacts on confidentiality and integrity but not availability. No patch or vendor advisory is currently available, and the plugin is not a cloud service.

Successful exploitation allows authenticated users with Contributor-level access or higher to inject persistent malicious scripts into pages rendered by the plugin. These scripts execute in the context of users viewing the affected pages, potentially leading to unauthorized actions or data exposure limited to confidentiality and integrity impacts. There is no indication of availability impact. 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, limit Contributor-level access to trusted users only and consider disabling or replacing the plugin if possible. Monitor for updates from the plugin vendor or WordPress security channels for an official patch or mitigation instructions.