What the vulnerability does
01Description
Multiple Authenticated Persistent Cross-Site Scripting (XSS) vulnerabilities in Simple Event Planner WordPress plugin <= 1.5.4 allows user with author or higher user rights inject the malicious code via vulnerable parameters: &custom[event_organiser], &custom[organiser_email], &custom[organiser_contact].
Explanation of Vulnerability in Simple Terms
02Summary
The Simple Event Planner WordPress plugin versions 1.5.4 and 1.5.5 contain a stored cross-site scripting (XSS) vulnerability. An authenticated user with low privileges can inject malicious JavaScript that executes in the browsers of other users who view affected pages. The vulnerability requires user interaction and affects the integrity of the site's content.
What an attacker can do
03Attacker Capabilities
Inject malicious JavaScript that runs in other users' browsers when they view the plugin's pages.
Potential impact on your site
04Site Impact
Authenticated users can deface event pages or steal data from site visitors viewing those pages.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege WordPress account and the victim must visit a page containing the injected content.
Key dates
06Disclosure timeline
March 25, 2022
CVE published
April 28, 2026
Record updated