CVE-2025-5122 is a stored cross-site scripting vulnerability in the Map Block Leaflet WordPress plugin (up to version 3.2.1). It allows authenticated users with Contributor-level privileges or above to inject arbitrary web scripts via the 'url' parameter due to improper input sanitization and output escaping. When other users access the injected pages, the malicious scripts execute, potentially leading to session hijacking or other script-based attacks. The vulnerability has a CVSS 3.1 base score of 6.4, reflecting network attack vector, low attack complexity, and privileges required. No patch or official fix details are currently available.

An attacker with Contributor-level or higher access can exploit this vulnerability to inject persistent malicious scripts into pages using the vulnerable plugin. These scripts execute in the context of users viewing the affected pages, potentially compromising user sessions or performing unauthorized actions within the affected WordPress site. The impact is limited to confidentiality and integrity loss without availability impact. 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 released, restrict Contributor-level access to trusted users only and consider disabling or removing the Map Block Leaflet plugin if possible. Monitor for updates from the plugin vendor or WordPress security advisories for an official patch or mitigation instructions.