What the vulnerability does
01Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in ThemeGoods Grand Conference grandconference allows Reflected XSS.This issue affects Grand Conference: from n/a through <= 5.3.4.
Explanation of Vulnerability in Simple Terms
02Summary
Grand Conference versions up to 5.3.4 contain a cross-site scripting (XSS) vulnerability that allows attackers to inject malicious scripts into web pages. An attacker can craft a malicious link or page that, when visited by a site user, executes arbitrary JavaScript in the victim's browser. This can lead to session hijacking, credential theft, or defacement. The vulnerability requires user interaction and affects the site's integrity and confidentiality.
What an attacker can do
03Attacker Capabilities
Inject malicious JavaScript that runs in visitors' browsers, potentially stealing sessions or credentials.
Potential impact on your site
04Site Impact
Visitors' sessions and data can be compromised if they interact with attacker-controlled content on your site.
Conditions required to exploit
05Prerequisites
Attacker needs to trick a site user into clicking a malicious link or visiting a compromised page.
Key dates
06Disclosure timeline
February 20, 2026
CVE published
April 28, 2026
Record updated