Threat intelligence

Forminator Forms – Contact Form, Payment Form & Custom Form Builder <= 1.56.0 - Unauthenticated Stored Cross-Site Scripting

CVE-2026-28143 · forminator

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

Vulnerability: Forminator Forms – Contact Form, Payment Form & Custom Form Builder <= 1.56.0 - Unauthenticated Stored Cross-Site Scripting
Affected software: forminator(Plugin)
Affected versions: ≤ 1.56.0
Authentication: Unauthenticated
Vulnerability type: Cross-site scripting
CVE: CVE-2026-28143
Published: 3 August 2026
CISA KEV: Not listed in CISA KEV at last catalog refresh
Impact: May allow attackers to run scripts in visitors' browsers or hijack admin sessions.
Source: Data imported from Wordfence Intelligence (advisory 3cbf77f4-59f5-49cd-ba2b-dc9de3d031b6). Methodology and redistribution notes

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