Missing authorization in Eventin plugin exposes WordPress user emails
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.
Summary
The Eventin plugin for WordPress, all versions through 4.1.29, lacks an authorization check (CWE-862). An authenticated attacker with subscriber-level access or higher can extract the email address and phone number of any WordPress user, including administrators.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
Description from the CNA
The Eventin – Events Calendar, Tickets, Registration, Booking & WooCommerce plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 4.1.29 via the 'id' parameter. This makes it possible for authenticated attackers, with subscriber-level access and above, to extract the email address and phone number of any WordPress user, including administrators, by supplying their user id in a query-string parameter while placing the authenticated user's own id in the URL path.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for Eventin (Events Calendar, Tickets, Registration, Booking & WooCommerce).
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
Timeline
- 2026-11-06 Threatist record created from CVE-2026-109994
- 2026-11-06 Alias added: GHSA-8w3v-fw7p-fr8m
- 2026-11-07 Priority changed: MEDIUM → LOW
- 2026-11-07 CISA SSVC decision points changed
References
Other 7
- https://www.wordfence.com/threat-intel/vulnerabilities/id/7f890e7b-4255-4d74-b717-bc4c9ad0eea6?source=cve
- https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.26/core/speaker/Api/SpeakerController.php#L393
- https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.26/core/speaker/Api/SpeakerController.php#L161
- https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.26/core/AccessControl/Ownership.php#L59
- https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.26/core/AccessControl/Ownership.php#L413
- https://plugins.trac.wordpress.org/changeset/3749617/wp-event-solution/trunk/core/speaker/Api/SpeakerController.php
- https://plugins.trac.wordpress.org/changeset/3759930/wp-event-solution/trunk/core/speaker/Api/SpeakerController.php
More Arraytics vulnerabilities
- TI-2025-30036 WordPress Eventin plugin <= 4.0.26 - Privilege Escalation Vulnerability CVSS 3.1CRITICAL 9.8
- TI-2025-29942 WordPress Eventin plugin <= 4.0.26 - Arbitrary File Download Vulnerability CVSS 3.1CRITICAL 9.8
- TI-2024-08599 Authorization bypass in Arraytics Timetics – Appointment Booking & Scheduling CVSS 3.1CRITICAL 9.8
- TI-2026-41447 WordPress Booktics plugin <= 1.0.21 - PHP Object Injection vulnerability CVSS 3.1CRITICAL 9.8
- TI-2024-29512 WordPress Timetics plugin <= 1.0.23 - Broken Access Control vulnerability CVSS 3.1CRITICAL 9.8
- TI-2023-25913 WordPress WPCafe plugin <= 2.2.22 - Broken Access Control vulnerability CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-109994 · CVE Program
- CVE-2026-109994 · NVD
- FIRST EPSS
- GHSA-8w3v-fw7p-fr8m · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences