CVE-2026-9656 (GCVE-0-2026-9656)

Vulnerability from cvelistv5 – Published: 2026-07-17 06:53 – Updated: 2026-07-17 06:53
VLAI
Title
HubSpot All-In-One Marketing <= 11.3.62 - Authenticated (Contributor+) Sensitive Information Exposure via Block Editor Localized Script
Summary
The HubSpot All-In-One Marketing – Forms, Popups, Live Chat plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 11.3.62 via the wp_localize_script() / window.leadinConfig JavaScript object. This makes it possible for authenticated attackers, with contributor-level access and above, to extract the site's plaintext HubSpot OAuth refresh token exposed via the window.leadinConfig JavaScript object, which can then be used to access or modify data in the connected HubSpot tenant. Although the refresh token is stored at rest with AES-256-CTR encryption, decryption occurs server-side before the plaintext value is passed to wp_localize_script(), rendering the at-rest encryption ineffective against this exposure path.
CWE
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
Impacted products
Credits
anhcd05
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "HubSpot All-In-One Marketing \u2013 Forms, Popups, Live Chat",
          "vendor": "hubspotdev",
          "versions": [
            {
              "lessThanOrEqual": "11.3.62",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "anhcd05"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The HubSpot All-In-One Marketing \u2013 Forms, Popups, Live Chat plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 11.3.62 via the wp_localize_script() / window.leadinConfig JavaScript object. This makes it possible for authenticated attackers, with contributor-level access and above, to extract the site\u0027s plaintext HubSpot OAuth refresh token exposed via the window.leadinConfig JavaScript object, which can then be used to access or modify data in the connected HubSpot tenant. Although the refresh token is stored at rest with AES-256-CTR encryption, decryption occurs server-side before the plaintext value is passed to wp_localize_script(), rendering the at-rest encryption ineffective against this exposure path."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "CWE-200 Exposure of Sensitive Information to an Unauthorized Actor",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-17T06:53:26.239Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/718d7ea3-d8ba-46a0-9ab1-72657bd82c17?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/leadin/tags/11.3.45/public/admin/class-adminconstants.php#L190"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/leadin/tags/11.3.45/public/auth/class-oauth.php#L46"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/leadin/tags/11.3.45/public/admin/class-gutenberg.php#L44"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/leadin/tags/11.3.45/public/class-assetsmanager.php#L150"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset?old_path=%2Fleadin/tags/11.3.62\u0026new_path=%2Fleadin/tags/11.3.64"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-07-16T17:50:07.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "HubSpot All-In-One Marketing \u003c= 11.3.62 - Authenticated (Contributor+) Sensitive Information Exposure via Block Editor Localized Script"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-9656",
    "datePublished": "2026-07-17T06:53:26.239Z",
    "dateReserved": "2026-05-26T20:23:14.339Z",
    "dateUpdated": "2026-07-17T06:53:26.239Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-9656\",\"sourceIdentifier\":\"security@wordfence.com\",\"published\":\"2026-07-17T08:16:59.043\",\"lastModified\":\"2026-07-17T08:16:59.043\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The HubSpot All-In-One Marketing \u2013 Forms, Popups, Live Chat plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 11.3.62 via the wp_localize_script() / window.leadinConfig JavaScript object. This makes it possible for authenticated attackers, with contributor-level access and above, to extract the site\u0027s plaintext HubSpot OAuth refresh token exposed via the window.leadinConfig JavaScript object, which can then be used to access or modify data in the connected HubSpot tenant. Although the refresh token is stored at rest with AES-256-CTR encryption, decryption occurs server-side before the plaintext value is passed to wp_localize_script(), rendering the at-rest encryption ineffective against this exposure path.\"}],\"affected\":[{\"source\":\"security@wordfence.com\",\"affectedData\":[{\"vendor\":\"hubspotdev\",\"product\":\"HubSpot All-In-One Marketing \u2013 Forms, Popups, Live Chat\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"0\",\"lessThanOrEqual\":\"11.3.62\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security@wordfence.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N\",\"baseScore\":4.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":1.4}]},\"weaknesses\":[{\"source\":\"security@wordfence.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-200\"}]}],\"references\":[{\"url\":\"https://plugins.trac.wordpress.org/browser/leadin/tags/11.3.45/public/admin/class-adminconstants.php#L190\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/leadin/tags/11.3.45/public/admin/class-gutenberg.php#L44\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/leadin/tags/11.3.45/public/auth/class-oauth.php#L46\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/leadin/tags/11.3.45/public/class-assetsmanager.php#L150\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/changeset?old_path=%2Fleadin/tags/11.3.62\u0026new_path=%2Fleadin/tags/11.3.64\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://www.wordfence.com/threat-intel/vulnerabilities/id/718d7ea3-d8ba-46a0-9ab1-72657bd82c17?source=cve\",\"source\":\"security@wordfence.com\"}]}}"
  }
}



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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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