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PluginCanary

MailChimp Subscribe Form, Optin Builder, PopUp Builder, Form Builder

by PluginOps · 2,000+ active installs · Checked 3 Nov 2026
Healthy1 Warning

Healthy: vulnerability published 11 Aug 2026, fixed in 4.3.4.

82/ 100 Canary Score
Sub-scores for MailChimp Subscribe Form, Optin Builder, PopUp Builder, Form Builder
Ownership100
Maintenance90
Security75
Support70
Reputation70

How the score works

Active signals

Facts we detected, with links to the source.

  • WarningSEC-1Vulnerability published 11 Aug 2026, fixed in 4.3.4. Update to version 4.3.4 or later.11 Aug 2026Evidence
  • InfoSEC-33 vulnerabilities published in the last 24 months. Review this plugin.4 Nov 2026Evidence

Ownership timeline

Who commits to the plugin's code on wordpress.org, over time.

Committers and their active periods
umarbajwa3 Sep 2014 to 29 Jul 2026, 622 commits

1 committer recorded. No ownership changes recorded since 3 Nov 2026.

Maintenance

Last release
3 months ago
Releases, 24 months
7
Tested up to
7.0 vs 7.1
Requires PHP
5.0 supported 8.2+
Releases per quarter for MailChimp Subscribe Form, Optin Builder, PopUp Builder, Form Builder
Q1 20240
Q2 20240
Q3 20241
Q4 20242
Q1 20250
Q2 20253
Q3 20250
Q4 20251
Q1 20260
Q2 20260
Q3 20261
Q4 20260

Last release 29 Jul 2026. Tested up to 7.0, 1 major version behind WordPress 7.1.

Support

Support history appears after our first snapshots of the forum counts.

Security record

PublishedIssueCVSSAffectedFixed inDays to patch
11 Aug 2026MailChimp Subscribe Form, Optin Builder, PopUp Builder, Form Builder <= 4.3.3 - Unauthenticated Stored Cross-Site Scripting7.2<= 4.3.34.3.40
31 Jul 2026MailChimp Subscribe Form, Optin Builder, PopUp Builder, Form Builder <= 4.3.3 - Unauthenticated Stored Cross-Site Scripting via Form Field Values7.2<= 4.3.34.3.40
15 Jan 2025MailChimp Subscribe Forms <= 4.1 - Authenticated (Contributor+) Stored Cross-Site Scripting6.4<= 4.14.2n/a
9 Aug 2024MailChimp Subscribe Forms <= 4.0.9.7 - Authenticated (Editor+) Stored Cross-Site Scripting4.4<= 4.0.9.74.0.9.80
22 May 2023MailChimp Subscribe Forms <= 4.0.9.1 - Authenticated (Administrator+) Stored Cross-Site Scripting4.4<= 4.0.9.14.0.9.20
10 May 2023MailChimp Subscribe Forms <= 4.0.9.3 - Open Redirect6.1<= 4.0.9.34.0.9.479
21 Apr 2015MailChimp Subscribe Form, Optin Builder, PopUp Builder, Form Builder < 1.2 - Remote Code Execution8.8< 1.21.21682

Source: Wordfence Intelligence.

Reputation

Lifetime rating 4.0 from 65 ratings. Quarterly trends appear as new reviews arrive.

Rating distribution
5 star48
4 star2
3 star0
2 star0
1 star15

Momentum

2,000+ active installs. History builds with each weekly snapshot.

Weekly downloads, last 27 weeks
Weekly downloads for MailChimp Subscribe Form, Optin Builder, PopUp Builder, Form Builder
4 May 202647
11 May 202692
18 May 202664
25 May 202686
1 Jun 202668
8 Jun 202680
15 Jun 202670
22 Jun 202670
29 Jun 202662
6 Jul 202670
13 Jul 202685
20 Jul 202686
27 Jul 20261,792
3 Aug 2026655
10 Aug 2026272
17 Aug 2026228
24 Aug 2026186
31 Aug 2026190
7 Sep 2026187
14 Sep 2026209
21 Sep 2026190
28 Sep 2026210
5 Oct 2026206
12 Oct 2026213
19 Oct 2026278
26 Oct 2026275
2 Nov 202638

Weekly downloads over the last 4 weeks are 10% below the 27-week average.

Healthier alternatives

Same category, higher Canary Score. Never sponsored.

SureContact - Newsletters, Email Marketing, Automation, Revenue Tracking & CRMScore 93 · 10,000+Hostinger Reach - AI-Powered Email Marketing for WordPressScore 91 · 1,000,000+MailPoet - Newsletters, Email Marketing, and AutomationScore 91 · 500,000+KlaviyoScore 91 · 100,000+Newsletters, Email Marketing, SMS and Popups by OmnisendScore 91 · 100,000+

Facts

Version4.3.4
AuthorPluginOps
Added3 Sep 2014
Last updated29 Jul 2026
Active installs2,000+
Requires WordPress3.2
Tested up to7.0.8
Requires PHP5.0
CategoryMarketing & Advertising > Email Marketing & Campaigns
Tagsemail, marketing, contact form, subscribe form, subscribe forms

Other plugins by this author: Landing Page Builder - Coming Soon page, Maintenance Mode, Lead Page, WordPress Landing Pages, Testimonial Slider - Free Testimonials Slider Plugin, Landing Page Builder - Free Landing Page Templates, Templates For PluginOps Landing Page Builder, Scroll To Top, Google Font, Post Slider, Twitter Feed, Post Next, Rating, Vertical Notification Bar

Questions

Is MailChimp Subscribe Form, Optin Builder, PopUp Builder, Form Builder still maintained?

MailChimp Subscribe Form, Optin Builder, PopUp Builder, Form Builder was last updated on 29 Jul 2026. Its Canary status is Healthy.

Is MailChimp Subscribe Form, Optin Builder, PopUp Builder, Form Builder safe?

MailChimp Subscribe Form, Optin Builder, PopUp Builder, Form Builder has no open unpatched vulnerabilities on record. 3 vulnerabilities were published in the last 24 months. Its Canary status is Healthy.

Who owns MailChimp Subscribe Form, Optin Builder, PopUp Builder, Form Builder?

The wordpress.org author is PluginOps. Recent committers: umarbajwa, plugin-master. We have recorded no ownership change.

What can I use instead of MailChimp Subscribe Form, Optin Builder, PopUp Builder, Form Builder?

Plugins in the same category with a higher Canary Score: SureContact - Newsletters, Email Marketing, Automation, Revenue Tracking & CRM, Hostinger Reach - AI-Powered Email Marketing for WordPress, MailPoet - Newsletters, Email Marketing, and Automation, Klaviyo, Newsletters, Email Marketing, SMS and Popups by Omnisend.

Data: wordpress.org Plugins API, plugins SVN and Trac, wordpress.org reviews, Wordfence Intelligence.Plugin data refreshed 3 Nov 2026.Report a data issue