What the vulnerability does
01Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Kleor Contact Manager contact-manager allows Reflected XSS.This issue affects Contact Manager: from n/a through <= 9.1.
Explanation of Vulnerability in Simple Terms
02Summary
Kleor Contact Manager versions up to 9.1 contain a cross-site scripting (XSS) vulnerability that allows attackers to inject malicious scripts into web pages viewed by other users. The vulnerability requires user interaction—typically clicking a malicious link—and can affect users across different parts of the application. An attacker can steal session cookies, redirect users, or deface content.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that execute in other users' browsers, stealing session data or redirecting them to phishing sites.
Potential impact on your site
04Site Impact
Users' accounts and data are at risk if they click malicious links. Attackers can impersonate users or harvest credentials without direct site compromise.
Conditions required to exploit
05Prerequisites
No authentication required. Victim must click a malicious link or visit an attacker-controlled page that triggers the vulnerability.
Key dates
06Disclosure timeline
March 25, 2026
CVE published
April 29, 2026
Record updated