CVE-2025-10749
📋 TL;DR
The Microsoft Azure Storage for WordPress plugin has a vulnerability that allows authenticated users with subscriber-level access or higher to delete arbitrary media files from the WordPress Media Library. This occurs due to missing capability checks on the 'azure-storage-media-replace' AJAX action. All WordPress sites using this plugin up to version 4.5.1 are affected.
💻 Affected Systems
- Microsoft Azure Storage for WordPress
⚠️ 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.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Malicious authenticated users could delete all media files from the WordPress site, causing permanent data loss and site functionality disruption.
Likely Case
Low-privilege authenticated users delete specific media files they shouldn't have access to, causing content loss and potential site issues.
If Mitigated
Minimal impact if proper access controls and monitoring are in place to detect unauthorized deletion attempts.
🎯 Exploit Status
Requires authenticated access and knowledge of the nonce value, which is exposed to all authenticated users.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 4.5.1
Vendor Advisory: https://plugins.trac.wordpress.org/browser/windows-azure-storage/
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Microsoft Azure Storage for WordPress'. 4. Click 'Update Now' if available, or manually update to latest version. 5. Verify plugin version is above 4.5.1.
🔧 Temporary Workarounds
Disable vulnerable AJAX endpoint
allRemove or restrict access to the vulnerable 'azure-storage-media-replace' AJAX action
Add to theme functions.php or custom plugin: remove_action('wp_ajax_azure-storage-media-replace', 'replace_media_callback');
🧯 If You Can't Patch
- Temporarily deactivate the Microsoft Azure Storage for WordPress plugin
- Restrict user registration and review existing user accounts for suspicious activity
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for Microsoft Azure Storage for WordPress version 4.5.1 or lowerCheck Version:
wp plugin list --name='Microsoft Azure Storage for WordPress' --field=versionVerify Fix Applied:
Verify plugin version is above 4.5.1 in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Unusual DELETE requests to /wp-admin/admin-ajax.php with action=azure-storage-media-replace
- Media file deletion events from low-privilege users
Network Indicators:
- POST requests to admin-ajax.php with replace_attachment parameter from non-admin users
SIEM Query:
source="wordpress.logs" AND (action="azure-storage-media-replace" OR message="*replace_attachment*") AND user_role!="administrator"🔗 References
- https://plugins.trac.wordpress.org/browser/windows-azure-storage/tags/4.5.1/includes/class-windows-azure-replace-media.php#L152
- https://plugins.trac.wordpress.org/browser/windows-azure-storage/tags/4.5.1/includes/class-windows-azure-replace-media.php#L346
- https://www.wordfence.com/threat-intel/vulnerabilities/id/e1b80852-a221-4c2c-b76d-8bdcd1e0f1ad?source=cve
