CVE-2026-5451 is a stored cross-site scripting vulnerability in the Extensions for Leaflet Map WordPress plugin, specifically affecting the 'elevation-track' shortcode. The flaw is due to improper neutralization of input during web page generation, allowing authenticated users with Contributor-level privileges or higher to inject arbitrary scripts. These scripts execute in the context of any user viewing the injected page, potentially leading to information disclosure or session hijacking. The vulnerability affects all versions up to and including 4.14. No vendor-provided patch or official remediation has been documented as of the publication date.

An attacker with Contributor-level access or higher can exploit this vulnerability to inject malicious scripts that execute in the browsers of users who view the compromised pages. This can lead to limited confidentiality and integrity impacts, such as theft of user credentials or unauthorized actions performed on behalf of users. There is no 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 shortcode if feasible. Monitor vendor channels for updates and apply patches promptly once released.