CVE-2026-39646 bozdoz CVE debrief

Who should care

Administrators and users of the Leaflet Map plugin for WordPress should be aware of this vulnerability, especially if they have not updated to a patched version. Affected operators, platforms, vulnerability-management, and security teams should review and address this vulnerability.

Technical summary

The CVE-2026-39646 vulnerability is caused by improper neutralization of input during web page generation, also known as Cross-site Scripting (XSS). The issue affects the Leaflet Map plugin for WordPress, versions from n/a through 3.4.4. An attacker with low privileges can exploit this vulnerability to inject malicious scripts into web pages, potentially leading to unauthorized actions or data breaches.

Defensive priority

Medium priority should be given to updating the Leaflet Map plugin to a version that addresses this vulnerability.

Recommended defensive actions

• Update the Leaflet Map plugin to the latest version available.
• Review and monitor user input to prevent malicious scripts from being injected.
• Implement additional security measures such as Content Security Policy (CSP) to mitigate XSS attacks.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.

Evidence notes

The CVE record was published on 2026-04-08T09:16:35.483Z and last modified on 2026-07-24T21:10:00.143Z. The NVD entry is currently Deferred. The vulnerability affects the Leaflet Map plugin for WordPress, versions from n/a through 3.4.4. The CVE-2026-39646 vulnerability is caused by improper neutralization of input during web page generation, also known as Cross-site Scripting (XSS).

Official resources