CVE-2025-47581 CRITICAL

CVE-2025-47581: WordPress WordPress Events Calendar Registration & Tickets plugin <= 2.6.0 - PHP Object Injection vulnerability

Vendor Elbisnero
Product WordPress Events Calendar Registration & Tickets
Weakness CWE-502 · Unsafe deserialization
Published May 19, 2025
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

Deserialization of Untrusted Data vulnerability in elbisnero WordPress Events Calendar Registration & Tickets wpeventplus allows Object Injection.This issue affects WordPress Events Calendar Registration & Tickets: from n/a through <= 2.6.0.

Explanation of Vulnerability in Simple Terms

02Summary

The WordPress Events Calendar Registration & Tickets plugin through version 2.6.0 deserializes untrusted data without validation, allowing an unauthenticated attacker to run arbitrary PHP code on the site. No user interaction is required. This affects all installations of the plugin up to and including version 2.6.0.

What an attacker can do

03Attacker Capabilities

Run arbitrary PHP code on the site and take complete control of it.

Potential impact on your site

04Site Impact

Complete compromise of the WordPress site, including data theft, malware installation, and site defacement.

Conditions required to exploit

05Prerequisites

Network access to the site; no authentication or user interaction required.

Key dates

06Disclosure timeline

May 19, 2025 CVE published
April 28, 2026 Record updated