CVE-2025-9331

4.3 MEDIUM

📋 TL;DR

The Spacious WordPress theme has a missing capability check that allows authenticated users with Subscriber-level access or higher to import demo data without authorization. This affects all WordPress sites using Spacious theme versions up to 1.9.11. Attackers can modify site content and potentially disrupt normal operations.

💻 Affected Systems

Products:
  • Spacious WordPress Theme
Versions: All versions up to and including 1.9.11
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with Spacious theme active. Vulnerable in default configuration.

⚠️ 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 users could import harmful demo content containing malware, backdoors, or inappropriate material, potentially compromising the entire WordPress site and affecting visitors.

🟠

Likely Case

Low-privileged users import unwanted demo content that disrupts site appearance and functionality, requiring cleanup by administrators.

🟢

If Mitigated

With proper user access controls and monitoring, impact is limited to minor content changes that can be quickly reverted.

🌐 Internet-Facing: MEDIUM
🏢 Internal Only: LOW

🎯 Exploit Status

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

Exploitation requires authenticated access with at least Subscriber role. Simple HTTP request to vulnerable endpoint.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version 1.9.12 or later

Vendor Advisory: https://themes.trac.wordpress.org/changeset/282946/

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Appearance > Themes. 3. Check if Spacious theme update is available. 4. Click 'Update Now' for Spacious theme. 5. Verify theme version is 1.9.12 or higher.

🔧 Temporary Workarounds

Remove vulnerable function via child theme

WordPress

Create a child theme that removes or overrides the vulnerable welcome_notice_import_handler function

Restrict user capabilities

WordPress

Use WordPress role management plugins to remove theme-related capabilities from Subscriber and other low-privilege roles

🧯 If You Can't Patch

  • Temporarily switch to a different WordPress theme until patch can be applied
  • Implement strict user access controls and monitor for unauthorized theme modifications

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Appearance > Themes. If Spacious theme version is 1.9.11 or lower, system is vulnerable.

Check Version:

WordPress CLI: wp theme list --field=name,status,version | grep spacious

Verify Fix Applied:

After updating, verify Spacious theme version shows 1.9.12 or higher in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • WordPress logs showing demo import actions by non-admin users
  • Unexpected theme modification events in audit logs

Network Indicators:

  • HTTP POST requests to /wp-admin/admin-ajax.php with action=welcome_notice_import_handler from non-admin users

SIEM Query:

source="wordpress.log" AND ("welcome_notice_import_handler" OR "demo import") AND user_role!="administrator"

🔗 References

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