CG Social Login - Seamless Google and Facebook Sign-In for Zen Cart 2.1

Modernise your Zen Cart store with fast, secure social login – engineered specifically for Zen Cart 2.1, with zero core edits and full compatibility with strict Content Security Policy environments.

SocialLogin allows customers to sign in using supported OAuth providers, reducing friction at checkout while preserving Zen Cart’s native account, address, and order workflows.

Key Features

Secure OAuth login integration

Enables customers to log in using supported social providers (Google included), without exposing passwords or compromising account security.

Existing Zen Cart accounts are respected and protected at all times.

Intelligent account matching and linking

If a social login email already exists in your store:

• Users are informed clearly

• No silent account takeovers

• Optional account linking logic included

This prevents duplicate accounts while keeping customer data safe.

Social profile completion handling

Customers logging in via social providers are guided through a clean profile completion flow when required, ensuring:

• Valid default address creation

• Correct billing and shipping setup

• Seamless continuation to checkout

No broken carts. No checkout dead ends.

Clean encapsulated plugin – No core modifications

Installed entirely under the zc_plugins directory.

• No overwritten files

• No template replacements

• No database hacks

• Fully removable

Designed to survive Zen Cart upgrades intact.

Content Security Policy aware

Built and tested with strict CSP environments in mind.

No unsafe inline scripts, no surprise violations, and no weakening of your site’s security headers.

Works with any Zen Cart 2.1 template

Integrates cleanly with custom and stock templates, without interfering with layout, modals, or checkout flow.

No assumptions about your theme structure.

Why Choose SocialLogin?

✔ Faster customer sign-in
✔ Reduced checkout abandonment
✔ Secure OAuth authentication
✔ No core edits
✔ CSP-safe by design
✔ Production-ready for real stores
✔ Designed specifically for Zen Cart 2.1

Installation

1. Upload the SocialLogin folder into /zc_plugins/

2. Visit Admin → Modules → Plugins → Install

3. Configure your OAuth credentials

4. Add the login button include to your template (one-line include)

Installation typically takes under 5 minutes.

Requirements

• Zen Cart 2.1

• PHP 8.3+

• OAuth credentials from supported providers

Backwards compatibility:
This module is designed for Zen Cart 2.1. Free support is only offered for Zen Cart 2.x installations.

Support Included

Premium email support for:

• Installation issues

• OAuth setup

• CSP conflicts

• Template compatibility

About the Developer

SocialLogin is developed by CrazyGamer Ltd and authored by director Paul Standen (known as FlappingFish on the Zen Cart forum), encapsulation of module performed with help from Anita Yadav.

Built from real-world store experience, every module is engineered with performance, security, and upgrade-safety in mind – with zero core edits.. wherever possible!