CVE-2024-11387 is a stored cross-site scripting vulnerability in the Easy Liveblogs WordPress plugin (versions up to 2.3.5). The issue stems from improper neutralization of input in the 'elb_liveblog' shortcode, where user-supplied attributes are not properly sanitized or escaped. Authenticated users with contributor or higher privileges can exploit this to inject arbitrary JavaScript that executes in the context of other users viewing the liveblog pages. This vulnerability can lead to limited confidentiality and integrity impacts but does not affect availability. The CVSS 3.1 base score is 6.4 (medium severity), with attack vector network, low attack complexity, privileges required, no user interaction, and scope changed.

Successful exploitation allows authenticated contributors or higher to inject persistent malicious scripts into pages using the 'elb_liveblog' shortcode. These scripts execute in the browsers of users who view the infected pages, potentially leading to information disclosure or manipulation of page content. The impact is limited to confidentiality and integrity, with no direct availability impact. There are no reports of active exploitation in the wild at this time.

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 Easy Liveblogs plugin if possible. Monitor for updates from the plugin author or WordPress security advisories to apply any forthcoming patches promptly.