CVE-2023-28165
📋 TL;DR
This CVE describes a missing authorization vulnerability in the Backup Bank WordPress plugin that allows attackers to bypass access controls. It affects WordPress sites using Backup Bank plugin versions up to 4.0.28, potentially allowing unauthorized access to backup functionality.
💻 Affected Systems
- Backup Bank: WordPress Backup Plugin
⚠️ 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
Attackers could delete, download, or manipulate website backups, potentially leading to data loss, site defacement, or complete site takeover if backups contain sensitive configuration data.
Likely Case
Unauthorized users accessing backup management functions, potentially downloading site backups containing sensitive data or deleting critical backup files.
If Mitigated
With proper access controls and authentication, only authorized administrators can manage backups, limiting impact to legitimate administrative actions.
🎯 Exploit Status
Exploitation requires some level of access but bypasses authorization checks. The vulnerability is publicly documented with technical details available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 4.0.29 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Backup Bank' plugin. 4. Click 'Update Now' if update available. 5. If no update available, manually download version 4.0.29+ from WordPress repository.
🔧 Temporary Workarounds
Disable vulnerable plugin
allTemporarily disable the Backup Bank plugin until patched
wp plugin deactivate wp-backup-bank
Restrict plugin access
allUse WordPress security plugins to restrict access to backup functionality
🧯 If You Can't Patch
- Implement strict network access controls to limit who can access WordPress admin interface
- Deploy web application firewall (WAF) rules to detect and block unauthorized backup management requests
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Installed Plugins → Backup Bank version. If version is 4.0.28 or earlier, system is vulnerable.Check Version:
wp plugin get wp-backup-bank --field=versionVerify Fix Applied:
Verify Backup Bank plugin version is 4.0.29 or later in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to backup-related endpoints
- Unexpected backup file downloads or deletions in plugin logs
Network Indicators:
- HTTP requests to /wp-admin/admin-ajax.php with backup-related actions from unauthorized IPs
SIEM Query:
source="wordpress.log" AND ("backup_bank" OR "wp-backup-bank") AND ("delete" OR "download" OR "restore") AND NOT user="admin_user"