{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-121976",
        "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "state": "PUBLISHED",
        "assignerShortName": "Wordfence",
        "dateReserved": "2026-11-04T13:11:52.039Z",
        "datePublished": "2026-11-07T11:26:32.022Z",
        "dateUpdated": "2026-11-07T18:06:00.294Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
                "shortName": "Wordfence",
                "dateUpdated": "2026-11-07T11:26:32.022Z"
            },
            "affected": [
                {
                    "vendor": "wpchill",
                    "product": "Modula Image Gallery – Photo Grid & Video Gallery",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "lessThanOrEqual": "3.0.17",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "The Modula plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'items' parameter in versions up to, and including, 3.0.17 This is due to insufficient input sanitization of the per-image 'link' field in the save_merged_items() REST handler and Images\\Adapter::normalize_item_row(), which preserves unknown keys verbatim, combined with output escaping in Modula_Helper::generate_attributes() that applies only esc_attr() to the resulting anchor href and does not strip the 'javascript:' URL scheme. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page and clicks the gallery tile."
                }
            ],
            "title": "Modula Image Gallery <= 3.0.17 - Authenticated (Author+) Stored Cross-Site Scripting via 'items' Parameter",
            "references": [
                {
                    "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/91d3cbc2-00ca-4384-a52d-84fe2f0328b3?source=cve"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/modula-best-grid-gallery/tags/3.0.17/includes/v2/images/class-adapter.php#L655"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/modula-best-grid-gallery/tags/3.0.17/includes/v2/rest/class-gallery-upload-controller.php#L914"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/modula-best-grid-gallery/tags/3.0.17/includes/v2/class-meta-sync.php#L422"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/modula-best-grid-gallery/tags/3.0.17/includes/public/shortcode/class-modula-item-data-processor.php#L629"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/modula-best-grid-gallery/tags/3.0.17/includes/core/helpers/class-modula-helper.php#L17"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/modula-best-grid-gallery/"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/changeset?reponame=&new=3787971%40modula-best-grid-gallery%2Ftags%2F3.0.18&old=3781958%40modula-best-grid-gallery%2Ftags%2F3.0.17"
                }
            ],
            "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:L/UI:N/S:C/C:L/I:L/A:N",
                        "baseScore": 6.4,
                        "baseSeverity": "MEDIUM"
                    }
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "type": "finder",
                    "value": "Wordfence PRISM"
                }
            ],
            "timeline": [
                {
                    "time": "2026-11-04T13:27:49.000Z",
                    "lang": "en",
                    "value": "Vendor Notified"
                },
                {
                    "time": "2026-11-06T21:49:31.000Z",
                    "lang": "en",
                    "value": "Disclosed"
                }
            ]
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "id": "CVE-2026-121976",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "version": "2.0.3",
                                "timestamp": "2026-11-07T17:59:32.564732Z"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-11-07T18:06:00.294Z"
                }
            }
        ]
    }
}