What the vulnerability does
01Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in brandtoss WP Mailster wp-mailster allows Reflected XSS.This issue affects WP Mailster: from n/a through <= 1.8.20.0.
Explanation of Vulnerability in Simple Terms
02Summary
WP Mailster versions up to 1.8.20.0 contain a cross-site scripting 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 multiple users across the site. An attacker needs no authentication to exploit this flaw.
What an attacker can do
03Attacker Capabilities
Inject malicious JavaScript that runs in other users' browsers, stealing session tokens or performing actions on their behalf.
Potential impact on your site
04Site Impact
Site visitors could have their sessions hijacked or be redirected to phishing pages; user data and site reputation at risk.
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 14, 2025
CVE published
May 11, 2026
Record updated