EventPrime – Modern Events Calendar, Bookings and Tickets <= 3.3.2 - Authenticated(Contributor+) Stored Cross-Site Scripting via Shortcode

6.4
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSS 6.4 (Medium)
Publicly Published November 21, 2023
Last Updated January 22, 2024

Description

The EventPrime – Events Calendar, Bookings and Tickets plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's shortcode(s) in all versions up to, and including, 3.3.2 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Learn more about Cross-Site Scripting vulnerabilities and how to prevent them.

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Vulnerability Details for EventPrime – Events Calendar, Bookings, Tickets & AI

Software Type Plugin
Software Slug eventprime-event-calendar-management (view on wordpress.org)
Patched? Yes
Remediation Update to version 3.3.3, or a newer patched version
Affected Version
  • <= 3.3.2
Patched Version
  • 3.3.3

Recent vulnerabilities in EventPrime – Events Calendar, Bookings, Tickets & AI

# Title CVE ID CVSS Researchers Date
1 EventPrime <= 4.3.4.2 - Unauthenticated Stored Cross-Site Scripting via 'new_event_type_background_color' Parameter CVE-2026-13441 7.2 Philipp Doblhofer July 8, 2026
2 EventPrime – Events Calendar, Bookings and Tickets <= 4.3.4.1 - Authenticated (Subscriber+) PHP Object Injection CVE-2026-56053 7.5 VanTastic June 25, 2026
3 EventPrime – Events Calendar, Bookings and Tickets <= 4.3.2.1 - Unauthenticated PHP Object Injection CVE-2026-42687 8.1 hhhai May 25, 2026
4 EventPrime – Events Calendar, Bookings and Tickets <= 4.3.2.1 - Authenticated (Subscriber+) Stored Cross-Site Scripting CVE-2026-42686 6.4 hhhai May 24, 2026
5 EventPrime – Events Calendar, Bookings and Tickets <= 4.3.2.0 - Missing Authorization CVE-2026-42669 5.3 Evan NR May 12, 2026
6 EventPrime – Events Calendar, Bookings and Tickets <= 4.3.0.0 - Authenticated (Subscriber+) Insecure Direct Object Reference CVE-2026-39518 4.3 James Pirstin April 20, 2026
7 EventPrime – Events Calendar, Bookings and Tickets <= 4.2.8.3 - Missing Authorization CVE-2026-25312 5.3 Dr. M Fahad Khan March 18, 2026
8 EventPrime – Events Calendar, Bookings and Tickets <= 4.2.8.0 - Unauthenticated PHP Object Injection CVE-2026-24378 8.1 Phat RiO March 17, 2026
9 EventPrime – Events Calendar, Bookings and Tickets <= 4.2.6.0 - Missing Authorization CVE-2025-69358 5.3 Nguyen Ba Khanh March 10, 2026
10 EventPrime <= 4.2.8.3 - Unauthenticated Information Exposure CVE-2026-25389 5.3 Bao - BlueRock February 20, 2026

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