Event Tickets and Registration Vulnerability – Improper Authorization to Information Disclosure – CVE-2024-2261 |WordPress Plugin Vulnerability Report

Plugin Name: Event Tickets and Registration

Key Information:

  • Software Type: Plugin
  • Software Slug: event-tickets
  • Software Status: Active
  • Software Author: theeventscalendar
  • Software Downloads: 3,490,727
  • Active Installs: 80,000
  • Last Updated: March 27, 2024
  • Patched Versions: 5.8.3
  • Affected Versions: <= 5.8.2

Vulnerability Details:

  • Name: Event Tickets and Registration <= 5.8.2
  • Title: Improper Authorization to Information Disclosure
  • Type: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
  • CVE: CVE-2024-2261
  • CVSS Score: 4.3
  • Publicly Published: March 26, 2024
  • Researcher: Tim Coen
  • Description: The Event Tickets and Registration plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 5.8.2 via the RSVP functionality. This vulnerability allows authenticated attackers, with contributor access and above, to extract sensitive data including emails and street addresses.


The Event Tickets and Registration plugin for WordPress has a vulnerability in versions up to and including 5.8.2 that exposes sensitive information through its RSVP functionality. This vulnerability has been patched in version 5.8.3.

Detailed Overview:

The vulnerability was discovered by researcher Tim Coen and resides in the RSVP functionality of the Event Tickets and Registration plugin. Attackers with at least contributor-level access could exploit this vulnerability to access sensitive information such as email addresses and street addresses of event attendees. The ease of exploitation, combined with the sensitivity of the exposed data, highlights the critical nature of this security issue. Following the discovery, the plugin developers promptly addressed the vulnerability, releasing patch version 5.8.3 to mitigate the risk.

Advice for Users:

  • Immediate Action: Update to the patched version 5.8.3 immediately.
  • Check for Signs of Vulnerability: Review your site's access logs for unauthorized access attempts, particularly focusing on the RSVP functionality.
  • Alternate Plugins: Consider using alternative plugins that offer similar functionality as a precaution, even though a patch is available.
  • Stay Updated: Regularly update all WordPress plugins to their latest versions to prevent vulnerabilities.


The swift action taken by the developers of the Event Tickets and Registration plugin to release a patch for this vulnerability highlights the importance of maintaining updated software. Users are strongly advised to update their installations to version 5.8.3 or later to protect their WordPress sites from potential information disclosure.


Detailed Report: 

In today's digital era, the security of your website cannot be overstated. As cyber threats become more sophisticated, a single overlooked update can lead to severe data breaches, compromising not just your business's integrity but also the trust of your customers. A recent case in point is the vulnerability discovered in the widely utilized WordPress plugin, Event Tickets and Registration, designated as CVE-2024-2261. This incident highlights a crucial lesson: the strength of your website's security is directly linked to the vigilance with which you manage it.

Event Tickets and Registration: A Popular Tool with a Critical Flaw

The Event Tickets and Registration plugin, a staple for many WordPress sites with over 3.4 million downloads and 80,000 active installations, recently fell prey to a significant security flaw. This plugin, developed by theeventscalendar, facilitates RSVP functionalities for events, making it an indispensable tool for event organizers. However, its convenience came at a price when a vulnerability was uncovered, affecting versions up to and including 5.8.2. The flaw allowed authenticated users with contributor-level access or higher to illicitly access sensitive information such as email addresses and street addresses of event attendees.

Understanding the Vulnerability and Its Risks

Identified by researcher Tim Coen, the vulnerability (CVE-2024-2261) involves Improper Authorization leading to Information Disclosure. With a CVSS score of 4.3, it represents a moderate risk, primarily because it could lead to the exposure of sensitive attendee information, thereby violating privacy and potentially leading to phishing attacks or other forms of exploitation. This breach in data privacy is not just a technical issue but a significant business risk, undermining customer trust and potentially leading to legal ramifications.

Remediation and Proactive Measures

The developers of Event Tickets and Registration acted promptly, releasing a patched version (5.8.3) that resolves this vulnerability. For WordPress site owners, the immediate action should be to update to this latest version. Beyond this specific incident, it's crucial to regularly monitor your site for unauthorized access attempts, especially focusing on critical functionalities like RSVPs. In the face of vulnerabilities, considering alternative plugins that provide similar services can also be a prudent measure. Most importantly, maintaining all WordPress plugins and themes up to date is the first line of defense against security threats.

A Look Back: The Plugin's Vulnerability History

This is not the first time the Event Tickets and Registration plugin has faced security issues. Since September 2, 2019, there have been five reported vulnerabilities, each serving as a reminder of the constant vigilance required in the digital space. These historical vulnerabilities further emphasize the need for regular updates and active security management.

The Bottom Line for Small Business Owners

For small business owners, managing a website alongside running a business can be overwhelming. However, the security of your digital presence is non-negotiable. Ignoring it can have far-reaching consequences, from data breaches to a tarnished brand reputation. The recent vulnerability in the Event Tickets and Registration plugin is a clear call to action. It's a reminder that in the digital realm, security is a journey, not a destination.

Staying on top of security vulnerabilities might seem daunting, especially when time is a scarce resource. Yet, the alternative—dealing with the aftermath of a security breach—is far more costly and time-consuming. Leveraging automated update features, subscribing to security blogs or services that alert you to vulnerabilities in plugins you use, and periodically consulting with cybersecurity professionals can help mitigate risks without monopolizing your time. Remember, in cybersecurity, prevention is always better than cure. Ensuring the security of your WordPress site isn't just a technical task; it's an integral part of safeguarding your business's future.

Staying Secure

Staying on top of WordPress security can feel overwhelming for small business owners without dedicated IT staff. At Your WP Guy, we exist to shoulder that burden for you. Our WordPress experts can fully audit, secure, maintain and support your site - so you can focus on growing your business with peace of mind.

Don't tackle security risks alone. Let us help you assess any impact from this vulnerability, update your plugins, and implement ongoing maintenance to avoid future threats. We treat your website like it's our own - because we know how critical it is for reaching your customers.

Get in touch for a free consultation today on making WordPress security stress-free. Call 678-995-5169 or book a call here. Our knowledgeable team is ready to help you safeguard your online presence.

Event Tickets and Registration Vulnerability – Improper Authorization to Information Disclosure – CVE-2024-2261 |WordPress Plugin Vulnerability Report FAQs

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