# CVE-2026-122061: Event Tickets and Registration information disclosure via REST API

Source: https://junglewise.ai/threats/cve-2026-122061-the-event-tickets-and-registration-wordpress-plugin-before-5-30  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-11. Updated: 2026-11-11  
License: CC BY 4.0 with a link back

CVE-2026-122061 · Severity: info · Published 2026-11-11

The Event Tickets and Registration WordPress plugin incorrectly validates access controls on its REST API endpoint that returns attendee information. An unauthenticated attacker can retrieve the names of attendees from events that do not display a public attendee list, exposing private attendee data without authorization.

Technologies: [The Events Calendar Event Tickets and Registration](https://junglewise.ai/threats/technologies/event-tickets-and-registration). Vendors: [The Events Calendar](https://junglewise.ai/threats/vendors/the-events-calendar).

## Quick answers

**Is CVE-2026-122061 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-122061 being exploited in the wild.

**How severe is CVE-2026-122061?** Informational severity, published 11 November 2026.

**Which products and versions are affected?** The Events Calendar Event Tickets and Registration before 5.30.3.1.

**Is there a fix for CVE-2026-122061?** Yes: fixed in 5.30.3.1. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-122061 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-122061?** Check whether you run The Events Calendar Event Tickets and Registration at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 5.30.3.1

## Technical details

The plugin fails to properly check whether an event has a public attendee list enabled before returning attendee details via the single attendee REST API endpoint. An unauthenticated attacker can exploit this via an HTTP request to retrieve attendee names from events configured with private attendee lists, bypassing the intended access control mechanism.

## Affected products

- The Events Calendar Event Tickets and Registration before 5.30.3.1

## Timeline

- 2026-11-09: disclosed
- 2026-11-11: advisory

## References

- [https://wpscan.com/vulnerability/a3546a21-e420-4482-8bbd-7d8f9b9c9b56/](https://wpscan.com/vulnerability/a3546a21-e420-4482-8bbd-7d8f9b9c9b56/)

## Related threats

- [Event Tickets and Registration information disclosure in attendee REST API](https://junglewise.ai/threats/cve-2026-122087-the-event-tickets-and-registration-wordpress-plugin-before-5-30)
- [Event Tickets and Registration Stripe OAuth endpoint capability check bypass](https://junglewise.ai/threats/cve-2026-3174-event-tickets-and-registration-stripe-oauth-endpoint-capability)
- [Event Tickets and Registration IDOR in seating actions](https://junglewise.ai/threats/cve-2026-14823-event-tickets-and-registration-idor-in-seating-actions)
- [The Events Calendar Event Tickets stored XSS in ticket history log](https://junglewise.ai/threats/cve-2026-14819-the-events-calendar-event-tickets-stored-xss-in-ticket-history)