Threat intelligence

HubSpot All-In-One Marketing – Forms, Popups, Live Chat <= 11.3.55 - Authenticated (Contributor+) Information Exposure

CVE-2026-57736 · leadin

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run Leadin at a vulnerable version. How SiteRespond intelligence works

Vulnerability: HubSpot All-In-One Marketing – Forms, Popups, Live Chat <= 11.3.55 - Authenticated (Contributor+) Information Exposure
Affected software: leadin(Plugin)
Affected versions: ≤ 11.3.55
Authentication: Authenticated (see advisory title)
Vulnerability type: Other
CVE: CVE-2026-57736
Published: 1 July 2026
CISA KEV: Not listed in CISA KEV at last catalog refresh
Impact: This advisory describes a other issue in the affected software. Review the source advisory and your installed version to assess exposure.
Source: Data imported from Wordfence Intelligence (advisory 3deffe49-c40e-4231-b9d6-035f6dc5f8b2). Methodology and redistribution notes

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