CVE-2026-25878
📋 TL;DR
CVE-2026-25878 is an authentication bypass vulnerability in the FroshAdminer plugin for Shopware Platform. Unauthenticated users can access the Adminer database management interface without Shopware admin credentials, potentially exposing database operations. This affects all Shopware installations using FroshAdminer versions prior to 2.2.1.
💻 Affected Systems
- FroshAdminer plugin for Shopware Platform
📦 What is this software?
Froshadminer by Friendsofshopware
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain full database access, allowing data theft, modification, or deletion, potentially leading to complete system compromise.
Likely Case
Unauthorized users access the Adminer interface, enabling database queries, data extraction, and potential privilege escalation.
If Mitigated
With proper network controls, impact is limited to internal threats or breaches of perimeter defenses.
🎯 Exploit Status
Exploitation requires only accessing the /admin/adminer route without authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.2.1
Vendor Advisory: https://github.com/FriendsOfShopware/FroshPlatformAdminer/security/advisories/GHSA-f339-246p-wwjp
Restart Required: No
Instructions:
1. Update FroshAdminer plugin to version 2.2.1 via Shopware backend or composer. 2. Verify the /admin/adminer route now requires authentication.
🔧 Temporary Workarounds
Disable Adminer Route
allRemove or block access to the /admin/adminer route via web server configuration.
# Apache: RewriteRule ^/admin/adminer - [F]
# Nginx: location /admin/adminer { deny all; }
Disable FroshAdminer Plugin
linuxTemporarily disable the FroshAdminer plugin until patching is possible.
bin/console plugin:deactivate FroshPlatformAdminer
🧯 If You Can't Patch
- Implement network-level access controls to restrict /admin/adminer route to trusted IPs only.
- Enable web application firewall rules to block unauthenticated access to Adminer endpoints.
🔍 How to Verify
Check if Vulnerable:
Attempt to access https://your-shopware-site.com/admin/adminer without authentication. If accessible, the system is vulnerable.Check Version:
composer show friends-of-shopware/frosh-platform-adminer | grep versionVerify Fix Applied:
After patching, attempt unauthenticated access to /admin/adminer. It should redirect to login or return 403.📡 Detection & Monitoring
Log Indicators:
- Unauthenticated requests to /admin/adminer in access logs
- Database queries from unexpected IPs or user agents
Network Indicators:
- HTTP requests to /admin/adminer without authentication headers
- Unusual database connection patterns
SIEM Query:
web.url = "/admin/adminer" AND NOT auth.user EXISTS