What the vulnerability does
01Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Spencer Haws Link Whisper Free link-whisper allows Reflected XSS.This issue affects Link Whisper Free: from n/a through <= 0.9.2.
Explanation of Vulnerability in Simple Terms
02Summary
Link Whisper Free versions up to 0.9.2 contain a cross-site scripting (XSS) vulnerability that allows attackers to inject malicious scripts into web pages. An attacker can craft a malicious link that, when visited by a site administrator or user, executes arbitrary JavaScript in their browser. This can lead to session hijacking, credential theft, or unauthorized actions performed on behalf of the victim.
What an attacker can do
03Attacker Capabilities
Inject and execute malicious JavaScript in a user's browser when they visit a crafted link.
Potential impact on your site
04Site Impact
Administrators or users visiting malicious links could have their sessions hijacked, credentials stolen, or site content modified without their knowledge.
Conditions required to exploit
05Prerequisites
The 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