What the vulnerability does
01Description
The Time Clock – A WordPress Employee & Volunteer Time Clock Plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'data' parameter in all versions up to, and including, 1.3.1. This is due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with Time Clock user credentials to inject arbitrary web scripts in pages that will execute whenever a user accesses an affected page.
Explanation of Vulnerability in Simple Terms
02Summary
The Time Clock plugin for WordPress contains a stored cross-site scripting (XSS) vulnerability in versions up to 1.3.1. An authenticated user with low privileges can inject malicious scripts that execute in the browsers of other site users, including administrators. The vulnerability affects the entire site due to scope change, allowing attackers to steal session tokens, modify content, or perform actions on behalf of victims.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that run in other users' browsers and execute site actions on their behalf.
Potential impact on your site
04Site Impact
Authenticated attackers can compromise admin accounts, steal data, or modify site content via injected scripts.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege WordPress account (e.g., subscriber or contributor role).
Key dates
06Disclosure timeline
October 24, 2025
CVE published
April 8, 2026
Record updated
