CVE-2024-11778 is a stored cross-site scripting vulnerability in the CanadaHelps Embedded Donation Form WordPress plugin (up to version 1.0.1). The issue is due to improper neutralization of input during web page generation, specifically in the 'embedcdn' shortcode, allowing authenticated users with contributor-level access or higher to inject malicious scripts. These scripts execute in the context of users viewing the injected pages, potentially leading to information disclosure or session hijacking. The vulnerability has a CVSS 3.1 base score of 6.4, reflecting network attack vector, low attack complexity, and privileges required at the contributor level.

An attacker with contributor-level or higher access can inject persistent malicious scripts into pages using the vulnerable shortcode. When other users access these pages, the scripts execute in their browsers, potentially leading to information disclosure or other client-side impacts. The vulnerability does not affect availability and requires authenticated access, limiting the scope of exploitation. There are no known exploits in the wild reported at this time.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, limit contributor-level access to trusted users only and consider removing or disabling the CanadaHelps Embedded Donation Form plugin if feasible. Monitor for updates from the vendor regarding a security patch or official mitigation.