What the vulnerability does
01Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WPMU DEV Broken Link Checker allows Stored XSS.This issue affects Broken Link Checker: from n/a through 2.2.3.
Explanation of Vulnerability in Simple Terms
02Summary
The Broken Link Checker plugin for WordPress contains a stored cross-site scripting (XSS) vulnerability in versions up to 2.2.3. An authenticated administrator can inject malicious scripts that execute in the browsers of other site users viewing affected pages. The vulnerability requires an admin to craft and save malicious input, and the injected script runs with the privileges of the user viewing the page.
What an attacker can do
03Attacker Capabilities
Inject malicious JavaScript that runs in other users' browsers when they view the site.
Potential impact on your site
04Site Impact
An admin account compromise could allow an attacker to steal session tokens, modify site content, or create new admin accounts.
Conditions required to exploit
05Prerequisites
Attacker must have administrator access and the victim must visit a page containing the injected payload.
Key dates
06Disclosure timeline
March 15, 2024
CVE published
April 28, 2026
Record updated