CVE-2024-3563 is a stored cross-site scripting vulnerability in the Genesis Blocks WordPress plugin's Sharing block. It affects all versions up to 3.1.3 due to improper neutralization of input during web page generation, specifically insufficient sanitization and escaping of user-supplied attributes. This allows authenticated attackers with contributor-level privileges or higher to inject malicious scripts that execute in the context of users viewing the compromised pages. The vulnerability has a CVSS 3.1 base score of 6.4, indicating medium severity. CVE-2024-3901 is a duplicate of this issue. No patch or remediation details are provided in the available data.

An authenticated attacker with contributor-level access or higher can exploit this vulnerability to inject and store malicious scripts within pages generated by the plugin. These scripts execute in the browsers of users who visit the affected pages, potentially leading to unauthorized actions such as session hijacking, defacement, or other client-side attacks. The vulnerability does not impact availability but affects confidentiality and integrity to a limited extent as indicated by the CVSS vector.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict contributor-level access to trusted users only and consider disabling or removing the Genesis Blocks Sharing block if feasible. Monitor official studiopress channels for updates or patches addressing this vulnerability.