Grav 2.0.15 before 2.2.13 Allowlist Bypass via Flex Form Override Directives

{
  "id": "856bbd6b1737e79fec5f70aa34b35fce76325b7a33404ba5ceec603f0db6f309",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-116019",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Grav 2.0.15 before 2.2.13 Allowlist Bypass via Flex Form Override Directives",
    "summary": "Grav 2.0.15 before 2.2.13 contains an allowlist bypass vulnerability that allows page editors to invoke arbitrary public static methods by relocating data-*@ directives with unset-name@ or integer keys. Attackers with page-edit permission can embed crafted fields in Flex form overrides in page frontmatter to call methods like Folder::delete or Utils::download, deleting directories, overwriting files, or reading files outside the page tree.",
    "evidence": "cve:CVE-2026-116019",
    "products": [
      {
        "name": {
          "value": "grav",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-116019",
      "aliases": [
        "CVE-2026-116019"
      ],
      "metrics": [
        {
          "format": "CVSS",
          "cvssV4_0": {
            "version": "4.0",
            "baseScore": 8.7,
            "attackVector": "NETWORK",
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "userInteraction": "NONE",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "privilegesRequired": "LOW",
            "subIntegrityImpact": "NONE",
            "vulnIntegrityImpact": "HIGH",
            "subAvailabilityImpact": "NONE",
            "vulnAvailabilityImpact": "HIGH",
            "subConfidentialityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH"
          }
        },
        {
          "format": "CVSS",
          "cvssV3_1": {
            "scope": "UNCHANGED",
            "version": "3.1",
            "baseScore": 8.8,
            "attackVector": "NETWORK",
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "integrityImpact": "HIGH",
            "userInteraction": "NONE",
            "attackComplexity": "LOW",
            "availabilityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "confidentialityImpact": "HIGH"
          }
        }
      ],
      "affected": [
        {
          "repo": "https://github.com/getgrav/grav",
          "vendor": "getgrav",
          "product": "grav",
          "versions": [
            {
              "status": "affected",
              "version": "2.0.15",
              "lessThan": "2.2.13",
              "versionType": "semver"
            }
          ],
          "packageURL": "pkg:composer/getgrav/grav",
          "defaultStatus": "unaffected"
        }
      ],
      "modified": "2026-10-26T17:39:42.999Z",
      "provider": "cve",
      "references": [
        "https://github.com/getgrav/grav/security/advisories/GHSA-47gg-mh38-9rr7",
        "https://github.com/getgrav/grav/commit/4d9e3935f6b79cc1a157914554ccca6066a16f87",
        "https://github.com/getgrav/grav/releases/tag/2.2.13",
        "https://github.com/getgrav/grav/blob/2.2.12/system/src/Grav/Common/Data/Blueprint.php",
        "https://www.vulncheck.com/advisories/grav-2.0.15-before-2.2.13-allowlist-bypass-via-flex-form-override-directives"
      ],
      "provider_metadata": {
        "adp": [
          {
            "title": "CISA ADP Vulnrichment",
            "metrics": [
              {
                "other": {
                  "type": "ssvc",
                  "content": {
                    "id": "CVE-2026-116019",
                    "role": "CISA Coordinator",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "version": "2.0.3",
                    "timestamp": "2026-10-26T15:40:21.053590Z"
                  }
                }
              }
            ],
            "providerMetadata": {
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP",
              "dateUpdated": "2026-10-26T17:39:42.999Z"
            }
          }
        ],
        "cna": {
          "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
          "shortName": "VulnCheck",
          "dateUpdated": "2026-10-24T11:40:35.632Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-116019",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/containers/cna/metrics"
  },
  "source_id": "core-cve",
  "document_id": 326380,
  "published_at": "2026-10-24T11:40:35.632+00:00"
}