{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-107743",
        "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "state": "PUBLISHED",
        "assignerShortName": "Wordfence",
        "dateReserved": "2026-10-08T18:24:36.206Z",
        "datePublished": "2026-10-29T09:25:36.733Z",
        "dateUpdated": "2026-10-29T10:35:36.566Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
                "shortName": "Wordfence",
                "dateUpdated": "2026-10-29T09:25:36.733Z"
            },
            "affected": [
                {
                    "vendor": "mapster",
                    "product": "Mapster WP Maps",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "lessThanOrEqual": "2.0.5",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "The Mapster WP Maps plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 2.0.5. This is due to the /wp-json/mapster-wp-maps/save-mapmaker REST route being registered with a permission_callback that unconditionally returns true (no capability check, no nonce), together with the mapster_write_config_to_acf() helper only sanitizing string config values with sanitize_text_field() — which strips HTML tags but leaves quote characters intact — and the mapster_wp_map shortcode renderer in mapster_wordpress_maps_shortcode_display() concatenating the stored loading_background_color value into a single-quoted inline style attribute without esc_attr(). This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."
                }
            ],
            "title": "Mapster WP Maps <= 2.0.5 - Unauthenticated Stored Cross-Site Scripting via 'config.loading.background' Parameter",
            "references": [
                {
                    "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/de1c951f-8b01-44cf-b192-412de9fae4fa?source=cve"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/mapster-wp-maps/tags/2.0.5/public/class-mapster-wordpress-maps-public.php#L262"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/mapster-wp-maps/tags/2.0.5/admin/api/config-converter.php#L523"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/mapster-wp-maps/tags/2.0.5/admin/api/class-mapster-wordpress-maps-api.php#L487"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/mapster-wp-maps/tags/2.0.5/admin/api/field-map.php#L304"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/mapster-wp-maps/tags/2.0.6/public/class-mapster-wordpress-maps-public.php"
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "CWE-79 Improper Neutralization of Input During Web Page Generation",
                            "cweId": "CWE-79",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
                        "baseScore": 7.2,
                        "baseSeverity": "HIGH"
                    }
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "type": "finder",
                    "value": "whatm"
                }
            ],
            "timeline": [
                {
                    "time": "2026-10-08T18:40:02.000Z",
                    "lang": "en",
                    "value": "Vendor Notified"
                },
                {
                    "time": "2026-10-28T21:16:39.000Z",
                    "lang": "en",
                    "value": "Disclosed"
                }
            ]
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "id": "CVE-2026-107743",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "version": "2.0.3",
                                "timestamp": "2026-10-29T10:31:23.767654Z"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-10-29T10:35:36.566Z"
                }
            }
        ]
    }
}