CVE-2025-57909

6.5 MEDIUM

📋 TL;DR

This CVE describes a missing authorization vulnerability in the WordPress Editor Custom Color Palette plugin that allows attackers to bypass access controls. Attackers could potentially modify color palette settings without proper permissions. This affects all WordPress sites using the plugin version 3.4.8 or earlier.

💻 Affected Systems

Products:
  • WordPress Editor Custom Color Palette plugin
Versions: All versions up to and including 3.4.8
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects WordPress installations with the vulnerable plugin enabled.

⚠️ 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

Unauthorized users could modify site appearance settings, potentially disrupting site functionality or preparing for further attacks by altering administrative interfaces.

🟠

Likely Case

Low-privileged users could modify color palette settings they shouldn't have access to, causing minor site appearance changes.

🟢

If Mitigated

Proper role-based access controls prevent unauthorized modifications, limiting impact to intended functionality.

🌐 Internet-Facing: MEDIUM
🏢 Internal Only: LOW

🎯 Exploit Status

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

Requires some WordPress user access, though potentially low-privileged. No public exploit code available.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version after 3.4.8

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/editor-custom-color-palette/vulnerability/wordpress-editor-custom-color-palette-plugin-3-4-8-broken-access-control-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Editor Custom Color Palette'. 4. Click 'Update Now' if available, or download latest version from WordPress repository. 5. Activate updated plugin.

🔧 Temporary Workarounds

Disable vulnerable plugin

all

Temporarily disable the Editor Custom Color Palette plugin until patched

wp plugin deactivate editor-custom-color-palette

Restrict user roles

all

Limit user accounts to only necessary roles and permissions

🧯 If You Can't Patch

  • Implement strict access controls and monitor for unauthorized configuration changes
  • Use web application firewall rules to block suspicious plugin-related requests

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Editor Custom Color Palette > Version. If version is 3.4.8 or lower, you are vulnerable.

Check Version:

wp plugin get editor-custom-color-palette --field=version

Verify Fix Applied:

After update, verify plugin version is higher than 3.4.8 in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized POST requests to /wp-admin/admin-ajax.php with editor-custom-color-palette actions
  • Unexpected color palette configuration changes in WordPress logs

Network Indicators:

  • Suspicious admin-ajax.php requests from unauthorized IPs or user roles

SIEM Query:

source="wordpress.log" AND ("editor-custom-color-palette" OR "admin-ajax.php") AND (action="save" OR action="update")

🔗 References

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