The Element Pack Elementor Addons plugin for WordPress suffers from a stored cross-site scripting vulnerability via the ‘onclick_event’ parameter. This flaw arises from improper neutralization of input during web page generation, allowing authenticated users with Contributor or higher privileges to inject malicious scripts. These scripts execute in the context of users visiting the compromised pages, potentially leading to information disclosure or session hijacking. The vulnerability affects all versions up to 5.6.11 and is tracked as CVE-2024-5554 with a CVSS 3.1 score of 6.4 (medium severity). There is no vendor-provided patch or official remediation guidance available in the provided data.

An attacker with Contributor-level or higher access can inject persistent malicious scripts into pages via the ‘onclick_event’ parameter. These scripts execute in the browsers of users who visit the infected pages, potentially leading to unauthorized actions such as session hijacking or data theft. The vulnerability does not affect availability and requires authentication with limited privileges, reducing the overall risk compared to unauthenticated remote code execution. No known exploits in the wild have been reported.

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 limiting use of the vulnerable plugin. Monitor for plugin updates from bdthemes and apply them promptly once available. Avoid relying on generic mitigations as the vulnerability specifically involves insufficient input sanitization in the ‘onclick_event’ parameter.