{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-6551",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-28T14:05:40.179008Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-28T14:34:04.680Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Timeline Blocks for Gutenberg",
          "vendor": "techeshta",
          "versions": [
            {
              "lessThanOrEqual": "1.1.10",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Athiwat Tiprasaharn"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Timeline Blocks for Gutenberg plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the \u0027titleTag\u0027 attribute of the timeline-blocks/tb-timeline-blocks block in all versions up to, and including, 1.1.10 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 6.4,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/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"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-28T04:28:20.578Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/393d1b30-19f8-454d-84c0-0b539953e1fe?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/timeline-blocks/tags/1.1.10/src/blocks/index.php#L202"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/timeline-blocks/tags/1.1.10/src/blocks/index.php#L343"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/timeline-blocks/trunk/src/blocks/index.php#L202"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/timeline-blocks/trunk/src/blocks/index.php#L343"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/timeline-blocks/trunk/src/blocks/index.php#L200"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/timeline-blocks/trunk/src/blocks/index.php#L342"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-04-18T07:12:43.000Z",
          "value": "Vendor Notified"
        },
        {
          "lang": "en",
          "time": "2026-04-27T15:59:19.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "Timeline Blocks for Gutenberg \u003c= 1.1.10 - Authenticated (Contributor+) Stored Cross-Site Scripting via \u0027titleTag\u0027 Block Attribute"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-6551",
    "datePublished": "2026-04-28T04:28:20.578Z",
    "dateReserved": "2026-04-17T21:23:28.358Z",
    "dateUpdated": "2026-04-28T14:34:04.680Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}