CVE-2025-10701 Overview
CVE-2025-10701 is a Stored Cross-Site Scripting (XSS) vulnerability in the Time Clock – A WordPress Employee & Volunteer Time Clock Plugin for WordPress. The flaw affects all versions up to and including 1.3.1. It stems from insufficient input sanitization and output escaping on the data parameter. Authenticated attackers with Time Clock user credentials can inject arbitrary web scripts that execute when other users view affected pages. The issue is tracked under [CWE-79] and was disclosed through the Wordfence threat intelligence program.
Critical Impact
Authenticated Time Clock users can persist malicious JavaScript that executes in the browser sessions of administrators and other visitors, enabling session hijacking, credential theft, or unauthorized administrative actions.
Affected Products
- Time Clock – A WordPress Employee & Volunteer Time Clock Plugin for WordPress
- All versions up to and including 1.3.1
- WordPress sites with authenticated Time Clock users
Discovery Timeline
- 2025-10-24 - CVE-2025-10701 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-10701
Vulnerability Analysis
The vulnerability resides in the Time Clock plugin's handling of user-supplied input passed through the data parameter. The plugin fails to sanitize input on write and does not escape output when rendering the stored value in administrative and user-facing pages. As a result, attacker-controlled markup and JavaScript persist in the database and execute in the browser of any user rendering the affected page. Exploitation requires only low-privileged authenticated access as a Time Clock user, and no user interaction is needed for the payload to trigger once a victim loads the page. Because the payload is stored, a single injection can affect multiple viewers over time, including administrators with elevated privileges.
Root Cause
The root cause is missing input sanitization and missing output escaping on user-supplied attributes. The vulnerable code paths reside in the plugin's action handler and admin activity renderer, specifically referenced in includes/actions.php around line 387 and includes/admin/activity.php around line 149. Neither location applies WordPress escaping functions such as esc_html(), esc_attr(), or wp_kses() before echoing user-controlled content.
Attack Vector
An attacker authenticates to the WordPress site with a Time Clock user account and submits crafted input containing HTML or JavaScript through the data parameter. The malicious payload is stored server-side and later rendered without escaping. When an administrator or other authorized user views the activity page, the script executes with the victim's session context, enabling actions such as cookie theft, forced administrative operations, or account takeover through CSRF-style requests initiated from the victim's browser. See the Wordfence Vulnerability Report for additional analysis.
Detection Methods for CVE-2025-10701
Indicators of Compromise
- Time Clock activity records containing HTML tags such as <script>, <img onerror=>, or <svg onload=> in stored fields.
- Unexpected outbound requests from administrator browsers to attacker-controlled domains shortly after viewing Time Clock admin pages.
- New WordPress administrator accounts or modified user roles created by low-privileged Time Clock users.
- Unusual session activity or password resets initiated from administrator sessions.
Detection Strategies
- Audit the WordPress database for entries in Time Clock tables containing HTML or JavaScript syntax in the data field.
- Deploy a Web Application Firewall (WAF) with rules that block XSS payloads submitted to Time Clock plugin endpoints.
- Review WordPress access logs for POST requests to Time Clock action handlers containing encoded script content.
Monitoring Recommendations
- Monitor administrative sessions for anomalous Document Object Model (DOM) modifications or script execution on Time Clock pages.
- Track user role changes and privilege escalation events across WordPress installations.
- Alert on outbound HTTP requests from browser sessions immediately after administrator logins to the affected plugin pages.
How to Mitigate CVE-2025-10701
Immediate Actions Required
- Update the Time Clock plugin to a version newer than 1.3.1 as soon as a patched release is available.
- Audit all Time Clock user accounts and remove or restrict any that are not required.
- Review stored plugin data for existing malicious payloads and sanitize or remove affected records.
- Rotate WordPress administrator credentials and invalidate active sessions if compromise is suspected.
Patch Information
A fix is referenced in the plugin's Subversion repository. Review the WordPress Plugin Changeset for the applied changes and upgrade to the fixed release published on WordPress.org.
Workarounds
- Temporarily deactivate the Time Clock plugin until an updated version is installed.
- Restrict Time Clock user registration and require manual approval of new accounts.
- Deploy a WAF rule to strip HTML tags from requests targeting Time Clock endpoints.
- Apply Content Security Policy (CSP) headers to limit inline script execution across the WordPress site.
# Example WordPress WP-CLI command to deactivate the plugin
wp plugin deactivate time-clock --all
# Example CSP header to restrict inline script execution
Header set Content-Security-Policy "default-src 'self'; script-src 'self'; object-src 'none';"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
