{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-42842",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-04-30T16:44:48.376Z",
        "datePublished": "2026-05-11T15:29:36.490Z",
        "dateUpdated": "2026-05-11T18:25:09.488Z"
    },
    "containers": {
        "cna": {
            "title": "grav-plugin-form: XSS via Taxonomy Field Values in Admin Panel",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-79",
                            "lang": "en",
                            "description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 5.4,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "LOW",
                        "integrityImpact": "LOW",
                        "privilegesRequired": "LOW",
                        "scope": "CHANGED",
                        "userInteraction": "REQUIRED",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/getgrav/grav/security/advisories/GHSA-c2q3-p4jr-c55f",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/getgrav/grav/security/advisories/GHSA-c2q3-p4jr-c55f"
                },
                {
                    "name": "https://github.com/getgrav/grav-plugin-form/commit/6bffb4c98be468a155d1656544ec45bb4a443957",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/getgrav/grav-plugin-form/commit/6bffb4c98be468a155d1656544ec45bb4a443957"
                }
            ],
            "affected": [
                {
                    "vendor": "getgrav",
                    "product": "grav",
                    "versions": [
                        {
                            "version": "< 2.0.0-beta.2",
                            "status": "affected"
                        }
                    ]
                },
                {
                    "vendor": "getgrav",
                    "product": "grav-plugin-form",
                    "versions": [
                        {
                            "version": "< 9.1.0",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-05-11T15:29:36.490Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "The form plugin for Grav adds the ability to create and use forms. Prior to 9.1.0, a Stored Cross-Site Scripting (XSS) vulnerability exists in the Grav CMS Form plugin's select field template. Taxonomy tag and category values are rendered with the Twig |raw filter in the admin panel, bypassing the global autoescape protection. An editor-level user can inject arbitrary JavaScript that executes in any administrator's browser session when they view or edit any page in the admin panel. This vulnerability is fixed in 9.1.0."
                }
            ],
            "source": {
                "advisory": "GHSA-c2q3-p4jr-c55f",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://github.com/getgrav/grav/security/advisories/GHSA-c2q3-p4jr-c55f",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-05-11T18:24:43.410950Z",
                                "id": "CVE-2026-42842",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-05-11T18:25:09.488Z"
                }
            }
        ]
    }
}