CVE-2024-11455 is a stored cross-site scripting vulnerability in the Include Mastodon Feed plugin for WordPress. It arises from insufficient sanitization and escaping of user-supplied attributes in the plugin's shortcode, allowing authenticated contributors or higher to inject arbitrary scripts. These scripts execute in the context of any user viewing the compromised page, potentially leading to session hijacking or other script-based attacks. The vulnerability affects all versions up to and including 1.9.4. No known exploits in the wild have been reported, and no patch information is provided in the input data.

An attacker with contributor-level or higher privileges can inject persistent malicious scripts into pages using the vulnerable shortcode. This can lead to client-side script execution in users' browsers, potentially compromising user sessions or performing unauthorized actions within the context of the affected site. The impact is limited to confidentiality and integrity loss at a low level, with no direct availability impact reported.

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 Include Mastodon Feed plugin to prevent exploitation.