CVE-2026-5451 is a stored cross-site scripting vulnerability in the Extensions for Leaflet Map WordPress plugin, specifically via the 'elevation-track' shortcode. The issue is caused by 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 any user who accesses the compromised page. The vulnerability affects all versions up to and including 4.14. The CVSS 3.1 score is 6.4 (medium severity), with attack vector network, low attack complexity, requiring privileges, no user interaction, and impacts confidentiality and integrity but not availability. No patch or official remediation has been published by the vendor as of the provided data.

An attacker with Contributor-level or higher access can inject persistent malicious scripts into pages via the vulnerable shortcode. This can lead to unauthorized actions performed in the context of other users viewing the page, potentially compromising confidentiality and integrity of user data. There is no indication of impact on availability. No known active exploitation has been 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 vulnerable plugin if possible. Monitor for updates from the vendor regarding patches or mitigations.