{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-13203",
        "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "state": "PUBLISHED",
        "assignerShortName": "Wordfence",
        "dateReserved": "2026-06-24T14:06:30.279Z",
        "datePublished": "2026-09-01T04:27:51.709Z",
        "dateUpdated": "2026-09-01T04:27:51.709Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
                "shortName": "Wordfence",
                "dateUpdated": "2026-09-01T04:27:51.709Z"
            },
            "affected": [
                {
                    "vendor": "livecomposer",
                    "product": "Live Composer – Free WordPress Website Builder",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "lessThanOrEqual": "2.1.19",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "The Live Composer – Free WordPress Website Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'custom_id' shortcode attribute of the dslc_modules_section and dslc_modules_area shortcodes in versions up to, and including, 2.1.19. This is due to insufficient input sanitization and output escaping on the user-supplied attribute, which is concatenated into the HTML id=\"\" attribute of the rendered <div> element in the dslc_modules_section_front() and dslc_modules_area_front() functions without esc_attr(). 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."
                }
            ],
            "title": "Live Composer <= 2.1.19 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'custom_id' Shortcode Attribute",
            "references": [
                {
                    "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/9b9e0302-b981-4885-822f-063247bec4b2?source=cve"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/live-composer-page-builder/tags/2.1.17/includes/display-functions.php#L1888"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/live-composer-page-builder/tags/2.1.17/includes/display-functions.php#L1922"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/live-composer-page-builder/tags/2.1.17/includes/display-functions.php#L2107"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/live-composer-page-builder/tags/2.1.17/includes/display-functions.php#L2113"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/live-composer-page-builder/tags/2.1.17/includes/display-functions.php#L1882"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/live-composer-page-builder/tags/2.1.13/includes/display-functions.php#L1888"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/live-composer-page-builder/tags/2.1.13/includes/display-functions.php#L1922"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/live-composer-page-builder/tags/2.1.13/includes/display-functions.php#L2107"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/live-composer-page-builder/tags/2.1.13/includes/display-functions.php#L2113"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/live-composer-page-builder/tags/2.1.13/includes/display-functions.php#L1882"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/changeset?reponame=&old=3662813%40live-composer-page-builder&new=3662813%40live-composer-page-builder"
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
                            "cweId": "CWE-79",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "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"
                    }
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "type": "finder",
                    "value": "Osvaldo Noe Gonzalez Del Rio (Os)"
                }
            ],
            "timeline": [
                {
                    "time": "2026-06-24T14:21:42.000Z",
                    "lang": "en",
                    "value": "Vendor Notified"
                },
                {
                    "time": "2026-08-31T15:53:35.000Z",
                    "lang": "en",
                    "value": "Disclosed"
                }
            ]
        }
    }
}