CVE-2025-52670
📋 TL;DR
This vulnerability allows authenticated users in Revive Adserver to delete advertising banners belonging to other user accounts due to missing authorization checks. It affects all users with banner management permissions in affected versions. The issue stems from improper access control in the banner deletion functionality.
💻 Affected Systems
- Revive Adserver
📦 What is this software?
Revive Adserver by Revive Adserver
Revive Adserver by Revive Adserver
⚠️ Risk & Real-World Impact
Worst Case
Malicious or compromised users could delete all advertising banners across the platform, causing complete disruption of ad campaigns and potential financial losses for advertisers.
Likely Case
Users accidentally or intentionally deleting banners from other accounts they shouldn't have access to, leading to ad campaign disruptions and data loss.
If Mitigated
With proper user role segregation and monitoring, impact would be limited to accidental deletions that could be restored from backups.
🎯 Exploit Status
Exploitation requires authenticated access but is trivial once authenticated. The vulnerability is publicly documented with technical details.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 5.5.3 or 6.0.2
Vendor Advisory: https://www.revive-adserver.com/security/
Restart Required: No
Instructions:
1. Backup your current installation and database
2. Download the patched version from the official Revive Adserver website
3. Replace the affected files with the patched versions
4. Verify the installation works correctly
🔧 Temporary Workarounds
Restrict User Permissions
allTemporarily restrict banner deletion permissions to only essential administrators
Implement Database Triggers
allAdd database-level triggers to log and potentially block unauthorized banner deletions
🧯 If You Can't Patch
- Implement strict user role segregation and limit banner management permissions
- Enable comprehensive logging of all banner deletion activities and implement alerting
🔍 How to Verify
Check if Vulnerable:
Check if your Revive Adserver version is 5.5.2 or earlier, or 6.0.1 or earlier. Test if users can delete banners from accounts they don't own.Check Version:
Check the version in the Revive Adserver admin interface or examine the /lib/RV.php file version constantVerify Fix Applied:
After patching, verify that users can only delete banners from their own accounts. Test with different user roles.📡 Detection & Monitoring
Log Indicators:
- Multiple banner deletion events from single user across different accounts
- Unusual pattern of banner deletions outside normal business hours
Network Indicators:
- HTTP POST requests to banner deletion endpoints with cross-account IDs
SIEM Query:
source="revive_adserver" AND (action="delete" OR method="POST") AND uri="/www/admin/banner-delete.php" AND user_id!=banner_owner_id