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Known vulnerabilities in properfraction MailOptin – Popup, Optin Forms & Email Newsletters for Mailchimp, HubSpot, AWeber Etc.

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CVE Summary Score Published
CVE-2026-109515 The MailOptin – Popup, Optin Forms & Email Newsletters for Mailchimp, HubSpot, AWeber Etc 9.8 Critical Oct 16, 2026

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