CVE-2022-25523
📋 TL;DR
TypesetterCMS v5.1 contains a Cross-Site Request Forgery (CSRF) vulnerability that allows attackers to trick authenticated users into performing unintended actions via crafted POST requests. This affects all TypesetterCMS v5.1 installations with default configurations. Attackers could modify content, change settings, or perform administrative actions without the user's knowledge.
💻 Affected Systems
- TypesetterCMS
📦 What is this software?
Typesetter by Typesettercms
⚠️ Risk & Real-World Impact
Worst Case
Complete site takeover where attackers can modify all content, change administrative credentials, install malicious plugins, or delete the entire site.
Likely Case
Unauthorized content modification, configuration changes, or privilege escalation leading to defacement or data manipulation.
If Mitigated
Limited impact with proper CSRF protections in place, though some functionality might still be vulnerable if not fully implemented.
🎯 Exploit Status
Exploitation requires the victim to be authenticated and visit a malicious page. The crafted POST request can be delivered via phishing or malicious websites.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v5.1.1 or later
Vendor Advisory: https://github.com/Typesetter/Typesetter/issues/697
Restart Required: No
Instructions:
1. Backup your TypesetterCMS installation. 2. Download the latest version from the official repository. 3. Replace all files with the patched version. 4. Verify that CSRF tokens are now properly implemented.
🔧 Temporary Workarounds
Implement CSRF Protection Middleware
allAdd custom CSRF token validation to all POST endpoints
Modify PHP files to include CSRF token checks before processing POST requests
Restrict Admin Access
allLimit administrative access to specific IP addresses or networks
Add IP restrictions to .htaccess or web server configuration for admin paths
🧯 If You Can't Patch
- Implement strict SameSite cookie policies and Content Security Policy headers
- Require re-authentication for sensitive actions and implement request rate limiting
🔍 How to Verify
Check if Vulnerable:
Check if your TypesetterCMS version is 5.1 by examining the version file or admin panel. Test POST endpoints for missing CSRF token validation.Check Version:
Check the version.txt file in the TypesetterCMS root directory or view the admin panel footerVerify Fix Applied:
Verify the version is 5.1.1 or later. Test that all POST requests now require valid CSRF tokens.📡 Detection & Monitoring
Log Indicators:
- Multiple POST requests to admin endpoints without referrer headers or from unusual sources
- Unauthorized configuration changes in the database
Network Indicators:
- POST requests to TypesetterCMS endpoints without CSRF tokens
- Requests originating from known malicious domains
SIEM Query:
source="web_server" AND (uri="*/admin/*" OR uri="*/index.php/Admin") AND method="POST" AND NOT csrf_token=*