CVE-2025-10490

4.4 MEDIUM

📋 TL;DR

The Zephyr Project Manager WordPress plugin has a stored XSS vulnerability in admin settings that allows authenticated administrators to inject malicious scripts. These scripts execute when users view affected pages. Only multi-site WordPress installations or those with unfiltered_html disabled are vulnerable.

💻 Affected Systems

Products:
  • Zephyr Project Manager WordPress Plugin
Versions: All versions up to and including 3.3.202
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ✅ No
Notes: Only affects WordPress multi-site installations OR installations where unfiltered_html capability is disabled for administrators.

⚠️ 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

Administrator account compromise leading to full site takeover, data theft, or malware distribution to site visitors.

🟠

Likely Case

Privileged attacker modifies admin settings to inject malicious JavaScript, potentially stealing session cookies or redirecting users.

🟢

If Mitigated

Limited impact due to requiring admin privileges and specific WordPress configurations.

🌐 Internet-Facing: MEDIUM
🏢 Internal Only: LOW

🎯 Exploit Status

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

Requires administrator-level WordPress credentials and specific WordPress configuration conditions.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Versions after 3.3.202

Vendor Advisory: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3366388%40zephyr-project-manager&new=3366388%40zephyr-project-manager&sfp_email=&sfph_mail=

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Zephyr Project Manager. 4. Click 'Update Now' if available. 5. Alternatively, download latest version from WordPress plugin repository and manually update.

🔧 Temporary Workarounds

Disable Plugin

WordPress

Temporarily disable the Zephyr Project Manager plugin until patched.

wp plugin deactivate zephyr-project-manager

Enable unfiltered_html

WordPress

Enable unfiltered_html capability for administrators (makes vulnerability inactive per CVE description).

define('DISALLOW_UNFILTERED_HTML', false); in wp-config.php

🧯 If You Can't Patch

  • Restrict admin access to trusted personnel only
  • Implement web application firewall with XSS protection rules

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Zephyr Project Manager version. If version is 3.3.202 or earlier, you are vulnerable if using multi-site OR unfiltered_html is disabled.

Check Version:

wp plugin get zephyr-project-manager --field=version

Verify Fix Applied:

Verify plugin version is higher than 3.3.202 in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • Unusual admin activity modifying Zephyr plugin settings
  • JavaScript injection patterns in admin area logs

Network Indicators:

  • Suspicious JavaScript payloads in HTTP POST requests to admin-ajax.php or admin-post.php

SIEM Query:

source="wordpress.log" AND ("zephyr" OR "project-manager") AND ("update" OR "settings" OR "save") AND ("script" OR "javascript" OR "onclick")

🔗 References

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