{"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": "2026-05-11T15:29:36.490Z"}, "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"}}}}

{}

{"cveTags": [], "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."}], "id": "CVE-2026-42842", "lastModified": "2026-05-11T17:16:33.873", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 2.3, "impactScore": 2.7, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-05-11T17:16:33.873", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/getgrav/grav-plugin-form/commit/6bffb4c98be468a155d1656544ec45bb4a443957"}, {"source": "security-advisories@github.com", "url": "https://github.com/getgrav/grav/security/advisories/GHSA-c2q3-p4jr-c55f"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{}