Quick answers
- Is CVE-2026-122087 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-122087 being exploited in the wild.
- How severe is CVE-2026-122087?
- 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-2026-122087?
- 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-2026-122087 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-122087?
- 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's attendees REST API endpoint does not properly filter results based on the visibility of the associated event, allowing a post_status filter bypass. Unauthenticated users can query the REST API to enumerate attendee data for private or otherwise non-public events, gaining unauthorized access to personally identifiable information tied to event registrations.
Affected products
- The Events Calendar Event Tickets and Registration before 5.30.3.1
Timeline
- 2026-11-09: disclosed
- 2026-11-11: advisory