What the vulnerability does
01Description
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in CodexHelp Master Popups allows Stored XSS.This issue affects Master Popups: from n/a through 1.0.3.
Explanation of Vulnerability in Simple Terms
02Summary
Master Popups versions 1.0.3 and earlier contain a stored cross-site scripting (XSS) vulnerability. An authenticated administrator with high privileges can inject malicious scripts into popup content. When other users view the affected popups, the scripts execute in their browsers, potentially compromising their sessions or stealing data. The vulnerability requires user interaction—victims must view the malicious popup.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that execute when other users view popups, potentially stealing session data or credentials.
Potential impact on your site
04Site Impact
Compromised user sessions, credential theft, or malware distribution through popup content if an admin account is breached.
Conditions required to exploit
05Prerequisites
Attacker must have high-level admin privileges and the victim must view the affected popup.
Key dates
06Disclosure timeline
July 20, 2024
CVE published
April 28, 2026
Record updated