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.
Metrics
Affected Vendors & Products
References
History
Fri, 17 Jul 2026 08:45:00 +0000
| Type | Values Removed | Values Added |
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Hubspotdev
Hubspotdev hubspot All-in-one Marketing – Forms, Popups, Live Chat Wordpress Wordpress wordpress |
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| Vendors & Products |
Hubspotdev
Hubspotdev hubspot All-in-one Marketing – Forms, Popups, Live Chat Wordpress Wordpress wordpress |
Fri, 17 Jul 2026 07:30:00 +0000
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| Description | 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. | |
| Title | HubSpot All-In-One Marketing <= 11.3.62 - Authenticated (Contributor+) Sensitive Information Exposure via Block Editor Localized Script | |
| Weaknesses | CWE-200 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: Wordfence
Published:
Updated: 2026-07-17T06:53:26.239Z
Reserved: 2026-05-26T20:23:14.339Z
Link: CVE-2026-9656
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OpenCVE Enrichment
Updated: 2026-07-17T08:30:05Z