# WebinarIgnition – Live, Automated & Evergreen Webinar System also for WooCommerce <= 4.20.01 - Unauthenticated Sensitive Information Exposure via 'cookie' Parameter in Lead Lookup AJAX Handler

- **ID:** WPSEC-2026-1104
- **Plugin:** WebinarIgnition – Live, Automated & Evergreen Webinar System for WordPress and WooCommerce (`webinar-ignition`), https://wordpress.org/plugins/webinar-ignition/
- **Affected versions:** all versions before 4.24.0
- **Fixed in:** 4.24.0 (Update to 4.24.0 or later.)
- **Severity:** Medium 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
- **Weakness:** CWE-639
- **Usage among sites WPSec scans:** plugin Low, affected versions None seen (as of 2026-10-16)
- **Attack surface analysis:** https://attacksurface.wpsec.com/plugin/webinar-ignition
- **Fix released:** 2026-10-15
- **Published:** 2026-10-16
- **URL:** https://wpsec.com/vuln/WPSEC-2026-1104/

## Description

The WebinarIgnition plugin for WordPress is vulnerable to Insecure Direct Object Reference via the 'cookie' parameter of the webinarignition_get_qa_name_email and webinarignition_get_qa_name_email2 AJAX actions, and the 'ip' parameter of the former, in all versions up to, and including, 4.20.01. This is due to the handlers looking up a lead record by a client-supplied numeric ID or IP address without checking that the record belongs to the requester; the only check is a nonce that is printed on public webinar pages. This makes it possible for unauthenticated attackers to step through sequential lead IDs and get the names and e-mail addresses of webinar registrants.

## References

- https://wpsec.com/vuln/WPSEC-2026-1104/
- https://plugins.svn.wordpress.org/webinar-ignition/tags/4.24.0/
- https://wordpress.org/plugins/webinar-ignition/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-1104/

License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Free to use, share and adapt, also commercially, if you credit WPSec and link to this advisory.