CVE-2026-9656

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-200

• https://plugins.trac.wordpress.org/browser/leadin/tags/11.3.45/public/admin/class-adminconstants.php#L190
• https://plugins.trac.wordpress.org/browser/leadin/tags/11.3.45/public/admin/class-gutenberg.php#L44
• https://plugins.trac.wordpress.org/browser/leadin/tags/11.3.45/public/auth/class-oauth.php#L46
• https://plugins.trac.wordpress.org/browser/leadin/tags/11.3.45/public/class-assetsmanager.php#L150
• https://plugins.trac.wordpress.org/changeset?old_path=%2Fleadin/tags/11.3.62&new_path=%2Fleadin/tags/11.3.64
• https://www.wordfence.com/threat-intel/vulnerabilities/id/718d7ea3-d8ba-46a0-9ab1-72657bd82c17?source=cve

Published

Jul 17, 2026

Last Modified

Jul 17, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-9645Exposed methods allow authenticated users to create and exec…9.9
• CVE-2026-9646A reflected cross-site scripting issue exists in URL handlin…6.1
• CVE-2026-9648The crypton-x509-validation Haskell library fails to enforce…9.1
• CVE-2026-9650CWE-522 Insufficiently Protected Credentials vulnerability t…7.5
• CVE-2026-9651CWE-732 Incorrect Permission Assignment for Critical Resourc…4.4
• CVE-2026-9653A denial-of-service security issue exists across all the 175…8.7
• CVE-2026-9658Plack::Middleware::Security::Common versions before 0.13.1 f…7.3
• CVE-2026-9662The Recover Exit For WooCommerce plugin for WordPress is vul…8.1
• CVE-2026-9669bz2.BZ2Decompressor objects could be reused after a decompre…8.2
• CVE-2026-9673Versions of the package json-2-csv from 3.15.0 and before 5.…6.8
• CVE-2026-9674A cross-site request forgery (CSRF) vulnerability in Jenkins…4.3
• CVE-2026-9675Impact: The undici WebSocket client enforces maxPayloadSize …7.5