CVE-2026-4120 (GCVE-0-2026-4120)
Vulnerability from cvelistv5
Published
2026-03-19 06:46
Modified
2026-04-08 16:42
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Summary
The Info Cards – Add Text and Media in Card Layouts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'btnUrl' parameter within the Info Cards block in all versions up to, and including, 2.0.7. This is due to insufficient input validation on URL schemes, specifically the lack of javascript: protocol filtering. The block's render.php passes all attributes as JSON to the frontend via a data-attributes HTML attribute using esc_attr(wp_json_encode()), which prevents HTML attribute injection but does not validate URL protocols within the JSON data. The client-side view.js then renders the btnUrl value directly as an href attribute on anchor elements without any protocol sanitization. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject javascript: URLs that execute arbitrary web scripts when a user clicks the rendered button link.
Impacted products
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-4120",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-20T15:16:40.756583Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-20T15:23:03.345Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Info Cards \u2013 Add Text and Media in Card Layouts",
          "vendor": "bplugins",
          "versions": [
            {
              "lessThanOrEqual": "2.0.7",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Itthidej Aramsri"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Info Cards \u2013 Add Text and Media in Card Layouts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the \u0027btnUrl\u0027 parameter within the Info Cards block in all versions up to, and including, 2.0.7. This is due to insufficient input validation on URL schemes, specifically the lack of javascript: protocol filtering. The block\u0027s render.php passes all attributes as JSON to the frontend via a data-attributes HTML attribute using esc_attr(wp_json_encode()), which prevents HTML attribute injection but does not validate URL protocols within the JSON data. The client-side view.js then renders the btnUrl value directly as an href attribute on anchor elements without any protocol sanitization. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject javascript: URLs that execute arbitrary web scripts when a user clicks the rendered button link."
        }
      ],
      "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": "2026-04-08T16:42:57.427Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/279984d9-f352-467f-a53d-814466d70326?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/info-cards/trunk/build/render.php#L8"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/info-cards/tags/2.0.7/build/render.php#L8"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/info-cards/trunk/build/view.js#L2"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/info-cards/tags/2.0.7/build/view.js#L2"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/info-cards/trunk/build/block.json#L35"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/info-cards/tags/2.0.7/build/block.json#L35"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/info-cards/trunk/build/render.php?rev=3482902"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-03-13T13:45:40.000Z",
          "value": "Vendor Notified"
        },
        {
          "lang": "en",
          "time": "2026-03-18T00:00:00.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "Info Cards \u003c= 2.0.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via Block Attributes"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-4120",
    "datePublished": "2026-03-19T06:46:14.030Z",
    "dateReserved": "2026-03-13T13:30:30.809Z",
    "dateUpdated": "2026-04-08T16:42:57.427Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"cna\": {\"title\": \"Info Cards \u003c= 2.0.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via Block Attributes\", \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Itthidej Aramsri\"}], \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"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\"}}], \"affected\": [{\"vendor\": \"bplugins\", \"product\": \"Info Cards \\u2013 Add Text and Media in Card Layouts\", \"versions\": [{\"status\": \"affected\", \"version\": \"*\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"2.0.7\"}], \"defaultStatus\": \"unaffected\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2026-03-13T13:45:40.000Z\", \"value\": \"Vendor Notified\"}, {\"lang\": \"en\", \"time\": \"2026-03-18T00:00:00.000Z\", \"value\": \"Disclosed\"}], \"references\": [{\"url\": \"https://www.wordfence.com/threat-intel/vulnerabilities/id/279984d9-f352-467f-a53d-814466d70326?source=cve\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/info-cards/trunk/build/render.php#L8\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/info-cards/tags/2.0.7/build/render.php#L8\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/info-cards/trunk/build/view.js#L2\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/info-cards/tags/2.0.7/build/view.js#L2\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/info-cards/trunk/build/block.json#L35\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/info-cards/tags/2.0.7/build/block.json#L35\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/info-cards/trunk/build/render.php?rev=3482902\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"The Info Cards \\u2013 Add Text and Media in Card Layouts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the \u0027btnUrl\u0027 parameter within the Info Cards block in all versions up to, and including, 2.0.7. This is due to insufficient input validation on URL schemes, specifically the lack of javascript: protocol filtering. The block\u0027s render.php passes all attributes as JSON to the frontend via a data-attributes HTML attribute using esc_attr(wp_json_encode()), which prevents HTML attribute injection but does not validate URL protocols within the JSON data. The client-side view.js then renders the btnUrl value directly as an href attribute on anchor elements without any protocol sanitization. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject javascript: URLs that execute arbitrary web scripts when a user clicks the rendered button link.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-79\", \"description\": \"CWE-79 Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"b15e7b5b-3da4-40ae-a43c-f7aa60e62599\", \"shortName\": \"Wordfence\", \"dateUpdated\": \"2026-03-19T06:46:14.030Z\"}}, \"adp\": [{\"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-4120\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-03-20T15:16:40.756583Z\"}}}], \"providerMetadata\": {\"shortName\": \"CISA-ADP\", \"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"dateUpdated\": \"2026-03-20T15:17:50.757Z\"}, \"title\": \"CISA ADP Vulnrichment\"}]}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-4120\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-03-19T06:46:14.030Z\", \"dateReserved\": \"2026-03-13T13:30:30.809Z\", \"assignerOrgId\": \"b15e7b5b-3da4-40ae-a43c-f7aa60e62599\", \"datePublished\": \"2026-03-19T06:46:14.030Z\", \"assignerShortName\": \"Wordfence\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


Loading…

Loading…