CVE-2025-6833

4.3 MEDIUM

📋 TL;DR

This vulnerability allows authenticated WordPress users with subscriber-level access or higher to manipulate other users' time clock entries by exploiting an insecure direct object reference in the AJAX handler. It affects all versions of the All in One Time Clock Lite plugin up to and including 2.0. Attackers can clock other users in and out without authorization.

💻 Affected Systems

Products:
  • All in One Time Clock Lite - Tracking Employee Time Has Never Been Easier
Versions: All versions up to and including 2.0
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with the vulnerable plugin enabled and at least one authenticated user with subscriber role or higher.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Malicious actors could manipulate employee time records, causing payroll discrepancies, compliance violations, and potential legal issues for organizations.

🟠

Likely Case

Disgruntled employees or low-privilege users could tamper with colleagues' time entries, leading to inaccurate time tracking and minor operational disruptions.

🟢

If Mitigated

With proper access controls and monitoring, impact would be limited to minor data integrity issues that could be corrected through audit trails.

🌐 Internet-Facing: MEDIUM
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires authenticated access and understanding of WordPress AJAX endpoints. No public exploit code has been identified.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Versions after 2.0

Vendor Advisory: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3336943%40aio-time-clock-lite&new=3336943%40aio-time-clock-lite&sfp_email=&sfph_mail=

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'All in One Time Clock Lite'. 4. Click 'Update Now' if available. 5. If no update appears, manually download latest version from WordPress repository and replace plugin files.

🔧 Temporary Workarounds

Disable vulnerable AJAX endpoint

WordPress

Remove or restrict access to the vulnerable 'aio_time_clock_lite_js' AJAX action via WordPress hooks or .htaccess rules.

add_action('init', function() { remove_action('wp_ajax_aio_time_clock_lite_js', 'aio_time_clock_lite_js_callback'); remove_action('wp_ajax_nopriv_aio_time_clock_lite_js', 'aio_time_clock_lite_js_callback'); });

🧯 If You Can't Patch

  • Temporarily deactivate the All in One Time Clock Lite plugin until patching is possible.
  • Implement strict user role management and monitor time clock activity logs for unauthorized changes.

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > All in One Time Clock Lite. If version is 2.0 or lower, the system is vulnerable.

Check Version:

wp plugin get aio-time-clock-lite --field=version

Verify Fix Applied:

After updating, verify plugin version is higher than 2.0. Test time clock functionality to ensure it works while attempting to reproduce the IDOR vulnerability.

📡 Detection & Monitoring

Log Indicators:

  • Unusual time clock modifications from non-admin users
  • Multiple clock in/out events for different users from same account
  • AJAX requests to /wp-admin/admin-ajax.php with action=aio_time_clock_lite_js

Network Indicators:

  • POST requests to WordPress AJAX endpoints with unexpected user_id parameters
  • Unusual time clock API activity patterns

SIEM Query:

source="wordpress.log" AND "admin-ajax.php" AND "aio_time_clock_lite_js" AND NOT user_role="administrator"

🔗 References

📤 Share & Export