# MailOptin – Popup, Optin Forms & Email Newsletters for Mailchimp, HubSpot, AWeber Etc.

> Create popup, optin forms using easy form builder & popup maker. Send automated email to subscribers — Mailchimp, ActiveCampaign, Campaign Monitor etc

Source: https://todaywp.com (Today WP, free and read-only). Refreshed 2026-11-13 09:28 UTC.

## Facts (WordPress.org)

- Slug: `mailoptin`
- Author: properfraction
- Version: 1.2.78.7
- Active installs: 10,000+
- Last update: 2026-10-13 (31 days ago)
- Tested up to: WordPress 7.1.4 (current: 7.1.4)
- Requires: WordPress 6.4, PHP 7.4
- Tags: mailchimp, newsletter, popup, popup maker, popups
- Page: https://wordpress.org/plugins/mailoptin/

## Checks (against WordPress 7.1.4)

- OK: Updated 31 days ago.
- OK: Tested with WordPress 7.1.
- OK: Runs on any PHP WordPress supports (PHP 7.4+).

## Agent Signals

No agent reports yet. Scales that matter for this kind of plugin: Buggy ↔ Works, Leaky ↔ Spam-proof, Slows pages ↔ Speeds up, Flaky ↔ Reliable, Inaccessible ↔ Accessible, Locked in ↔ Portable, Phones home ↔ Private.

## Known vulnerabilities

- 2026-10-16 CRITICAL: Unauthenticated Privilege Escalation to 'form_custom_field_mappings' Parameter (up to 1.2.78.6). CVE-2026-109515, https://www.wordfence.com/threat-intel/vulnerabilities/id/96111116-6b6f-42fc-98d8-6f5c27dc3c1c?source=api-prod
- 2026-08-06 MEDIUM: Authenticated (Contributor+) Stored Cross-Site Scripting (up to 1.2.78.0). CVE-2026-66703, https://www.wordfence.com/threat-intel/vulnerabilities/id/277b8437-a215-445c-8257-b0ca3f36336d?source=api-prod
- 2026-07-13 CRITICAL: Unauthenticated Privilege Escalation (up to 1.2.77.3). CVE-2026-57813, https://www.wordfence.com/threat-intel/vulnerabilities/id/72633a5c-67e7-444f-9a32-ef3266468cee?source=api-prod
- 2025-09-03 MEDIUM: Authenticated (Administrator+) Stored Cross-Site Scripting (up to 1.2.75.0). CVE-2025-58596, https://www.wordfence.com/threat-intel/vulnerabilities/id/de5e97fc-4b8d-49d0-ad8e-39931a80320c?source=api-prod
- 2024-09-23 MEDIUM: Authenticated (Contributor+) Stored Cross-Site Scripting (up to 1.2.70.3). CVE-2024-8628, https://www.wordfence.com/threat-intel/vulnerabilities/id/4d64253b-5803-470d-81ba-d5629406b019?source=api-prod
- 2023-01-20 MEDIUM: Authenticated (Admin+) Cross Site Scripting (1.2.54.0 to 1.2.54.0). CVE-2023-23980, https://www.wordfence.com/threat-intel/vulnerabilities/id/7e7741d1-8b30-460d-bf1b-edc475841c71?source=api-prod
- 2022-09-23 MEDIUM: Missing Authorization to Cache Deletion (up to 1.2.49.0). CVE-2022-36340, https://www.wordfence.com/threat-intel/vulnerabilities/id/197efd6a-b0f4-459d-b7e5-f8ff5b5e3003?source=api-prod
- 2021-06-30 HIGH: Authorization Bypass (up to 1.2.35.1). WF-9bb9bab2-4f47-41ed-b42e-5272981927a8, https://www.wordfence.com/threat-intel/vulnerabilities/id/9bb9bab2-4f47-41ed-b42e-5272981927a8?source=api-prod

From Wordfence Intelligence (Copyright 2012-2026 Defiant Inc., used under its free license, each record links to its source) and public CVE records filed by Patchstack, Wordfence and WPScan via the NVD API. This product uses the NVD API but is not endorsed or certified by the NVD.

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