CVE-2024-12518 is a stored cross-site scripting vulnerability in the ShMapper by Teplitsa WordPress plugin, affecting all versions up to 1.4.18. The issue stems from improper neutralization of input in the 'shmMap' shortcode, where user-supplied attributes are not properly sanitized or escaped. Authenticated attackers with contributor-level privileges or higher can exploit this to inject arbitrary web scripts that execute in the context of users visiting the compromised pages. This vulnerability can lead to limited confidentiality and integrity impacts but does not affect availability. No known exploits in the wild have been reported, and no patch or remediation has been documented in the provided data.

The vulnerability allows authenticated users with contributor or higher privileges to inject and execute arbitrary scripts in the context of other users viewing the affected pages. This can lead to limited confidentiality and integrity impacts, such as session hijacking or unauthorized actions performed on behalf of users. There is no reported impact on system availability. No known exploits have been observed in the wild.

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 ShMapper plugin if possible to mitigate risk.