CVE-2025-9519

7.2 HIGH

📋 TL;DR

The Easy Timer WordPress plugin allows authenticated attackers with Editor-level permissions or higher to execute arbitrary code on the server through malicious shortcode attributes. This affects all WordPress sites using Easy Timer versions up to 4.2.1.

💻 Affected Systems

Products:
  • WordPress Easy Timer plugin
Versions: All versions up to and including 4.2.1
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with Easy Timer plugin enabled and at least one user with Editor 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

Complete server compromise leading to data theft, malware deployment, or website defacement.

🟠

Likely Case

Unauthorized code execution allowing privilege escalation, backdoor installation, or data exfiltration.

🟢

If Mitigated

Limited impact if proper user role management restricts Editor access to trusted personnel only.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires authenticated access with Editor privileges or higher. Public proof-of-concept code is available.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 4.2.2

Vendor Advisory: https://plugins.trac.wordpress.org/changeset/3355111/

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find Easy Timer and click 'Update Now'. 4. Verify version is 4.2.2 or higher.

🔧 Temporary Workarounds

Disable Easy Timer plugin

all

Temporarily deactivate the vulnerable plugin until patching is possible.

wp plugin deactivate easy-timer

Restrict user roles

all

Review and minimize users with Editor or higher privileges.

🧯 If You Can't Patch

  • Immediately disable the Easy Timer plugin via WordPress admin or command line.
  • Implement strict monitoring of user accounts with Editor privileges or higher.

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Easy Timer version. If version is 4.2.1 or lower, you are vulnerable.

Check Version:

wp plugin get easy-timer --field=version

Verify Fix Applied:

Confirm Easy Timer plugin version is 4.2.2 or higher in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to WordPress admin-ajax.php or admin-post.php containing Easy Timer shortcodes
  • Suspicious PHP code execution in web server logs

Network Indicators:

  • HTTP requests with malicious payloads in shortcode parameters

SIEM Query:

source="web_server.log" AND ("easy-timer" OR "[timer") AND ("eval" OR "system" OR "exec" OR "shell_exec")

🔗 References

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