What the vulnerability does
01Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in N Squared Simply Schedule Appointments allows Reflected XSS.This issue affects Simply Schedule Appointments: from n/a through 1.6.6.20.
Explanation of Vulnerability in Simple Terms
02Summary
Simply Schedule Appointments versions up to 1.6.6.20 contain a cross-site scripting (XSS) vulnerability that allows attackers to inject malicious scripts into the application. An attacker can craft a malicious link that, when clicked by a site visitor, executes arbitrary JavaScript in the victim's browser. This can lead to session hijacking, credential theft, or defacement of the scheduling interface.
What an attacker can do
03Attacker Capabilities
Inject and execute malicious JavaScript in a visitor's browser when they click a crafted link.
Potential impact on your site
04Site Impact
Visitors' sessions and credentials may be compromised; site reputation and user trust can be damaged.
Conditions required to exploit
05Prerequisites
The victim must click an attacker-supplied link or visit a page containing the malicious payload.
Key dates
06Disclosure timeline
March 27, 2024
CVE published
April 28, 2026
Record updated