What the vulnerability does
01Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in calliko NPS computy nps-computy allows DOM-Based XSS.This issue affects NPS computy: from n/a through <= 2.8.2.
Explanation of Vulnerability in Simple Terms
02Summary
NPS computy versions 2.8.2 and earlier contain a cross-site scripting (XSS) vulnerability that allows attackers to inject malicious scripts into web pages. The vulnerability requires user interaction—victims must visit a crafted link or page. When exploited, attackers can steal session cookies, redirect users, or perform actions on their behalf. The impact extends beyond the vulnerable component to affect other parts of the application.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that execute in users' browsers to steal data or perform unauthorized actions.
Potential impact on your site
04Site Impact
Users visiting crafted links could have their sessions hijacked or be redirected to malicious sites.
Conditions required to exploit
05Prerequisites
Victim must click a malicious link or visit an attacker-controlled page; no authentication required.
Key dates
06Disclosure timeline
February 20, 2026
CVE published
April 28, 2026
Record updated