What the vulnerability does
01Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Activity Track Uji Countdown uji-countdown allows Reflected XSS.This issue affects Uji Countdown: from n/a through <= 2.3.3.
Explanation of Vulnerability in Simple Terms
02Summary
Uji Countdown versions 2.3.3 and earlier contain a cross-site scripting (XSS) vulnerability that allows attackers to inject malicious scripts into the application. An attacker can craft a malicious link or page that, when visited by a user, executes arbitrary JavaScript in the victim's browser. This can lead to session hijacking, credential theft, or defacement of the site's content.
What an attacker can do
03Attacker Capabilities
Inject and execute malicious JavaScript in a user's browser to steal session data, credentials, or modify page content.
Potential impact on your site
04Site Impact
Users visiting crafted malicious links could have their sessions compromised or personal data stolen through client-side script execution.
Conditions required to exploit
05Prerequisites
The victim must visit a malicious link or page containing the injected payload; no authentication required.
Key dates
06Disclosure timeline
October 22, 2025
CVE published
April 28, 2026
Record updated