{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-108260",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-13T15:17:02.736533Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-13T15:17:14.297Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/tinacms/tinacms/security/advisories/GHSA-c42q-qvc3-j6vg"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "tinacms",
          "vendor": "tinacms",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.14.0"
            }
          ]
        },
        {
          "product": "web-components",
          "vendor": "@tinacms",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.2.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Tina is a headless content management system. Prior to 0.2.1, the tina-markdown element in packages/@tinacms/web-components/src/tina-markdown.js assigns a rich-text node.url value directly to an anchor href without validating the URL scheme. A content author can store a link using a script-capable scheme, and a visitor who clicks the rendered link executes attacker-controlled script in the site\u0027s origin. The script can access same-origin application data and, when the visitor is an editor or administrator, may expose credentials stored by the TinaCMS admin on that origin. This issue is fixed in version 0.2.1."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.6,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-83",
              "description": "CWE-83: Improper Neutralization of Script in Attributes in a Web Page",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-09T20:40:37.228Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/tinacms/tinacms/security/advisories/GHSA-c42q-qvc3-j6vg",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/tinacms/tinacms/security/advisories/GHSA-c42q-qvc3-j6vg"
        },
        {
          "name": "https://github.com/tinacms/tinacms/pull/7523",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/tinacms/tinacms/pull/7523"
        },
        {
          "name": "https://github.com/tinacms/tinacms/commit/5295e077f0d279c35686a0e481a15e33a4877e3b",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/tinacms/tinacms/commit/5295e077f0d279c35686a0e481a15e33a4877e3b"
        },
        {
          "name": "https://github.com/tinacms/tinacms/releases/tag/@tinacms/web-components@0.2.1",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/tinacms/tinacms/releases/tag/@tinacms/web-components@0.2.1"
        }
      ],
      "source": {
        "advisory": "GHSA-c42q-qvc3-j6vg",
        "discovery": "UNKNOWN"
      },
      "title": "@tinacms/web-components: `tina-markdown` writes rich-text link URLs into `href` without scheme validation, allowing stored XSS"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-108260",
    "datePublished": "2026-10-09T20:40:37.228Z",
    "dateReserved": "2026-10-09T17:33:15.409Z",
    "dateUpdated": "2026-10-13T15:17:14.297Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}