CVE-2024-13576 is a stored cross-site scripting vulnerability in the Gumlet Video WordPress plugin (up to version 1.0.3). It results from improper neutralization of input during web page generation (CWE-79). Specifically, the plugin fails to adequately sanitize and escape user-supplied attributes in the 'gumlet' shortcode, allowing authenticated users with contributor-level access or higher to inject arbitrary JavaScript code. This code executes in the context of any user who views the compromised page, potentially leading to session hijacking or other client-side attacks. The vulnerability is network exploitable with low attack complexity and no user interaction required beyond authentication.

An attacker with contributor-level or higher access can inject persistent malicious scripts into pages via the vulnerable shortcode. These scripts execute in the browsers of users who visit the affected pages, potentially leading to information disclosure or session hijacking. The vulnerability does not impact availability and requires authenticated access, limiting its scope. There are no known exploits 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 available, restrict contributor-level access to trusted users only and consider disabling or removing the Gumlet Video plugin if possible. Monitor for updates from the vendor regarding patches or official mitigations.