CVE-2025-13813
📋 TL;DR
This vulnerability in Mogu Blog v2 allows unauthorized access to the storage management endpoint due to missing authorization controls. Attackers can potentially access or manipulate stored files remotely. All installations of Mogu Blog v2 up to version 5.2 are affected.
💻 Affected Systems
- moxi159753 Mogu Blog v2
📦 What is this software?
Mogublog by Mogublog Project
⚠️ Risk & Real-World Impact
Worst Case
Unauthorized attackers gain full access to stored files, potentially including sensitive data, configuration files, or user uploads, leading to data theft or system compromise.
Likely Case
Attackers access publicly available stored files or limited sensitive data, potentially exposing user-uploaded content or configuration details.
If Mitigated
With proper authorization controls, only authenticated administrators can access storage management functions, preventing unauthorized access.
🎯 Exploit Status
Exploit is publicly available but rated as difficult to execute; remote attack vector confirmed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: unknown
Vendor Advisory: none
Restart Required: No
Instructions:
No official patch available; vendor did not respond to disclosure. Consider upgrading to any version beyond 5.2 if available, or implement workarounds.
🔧 Temporary Workarounds
Restrict access to /storage/ endpoint
allImplement access controls at the web server or application level to restrict unauthorized access to the /storage/ endpoint.
# Example for Apache: <Location /storage/>
# Require valid-user
# </Location>
# Example for Nginx: location /storage/ {
# deny all;
# }
Implement authentication middleware
allAdd authentication checks before processing requests to the storage management endpoint.
# Modify application code to include authentication verification
# before processing /storage/ requests
🧯 If You Can't Patch
- Implement network segmentation to isolate the Mogu Blog instance from sensitive systems.
- Monitor access logs for unauthorized requests to /storage/ endpoint and implement alerting.
🔍 How to Verify
Check if Vulnerable:
Check if your Mogu Blog version is 5.2 or earlier and test if the /storage/ endpoint is accessible without proper authentication.Check Version:
Check the application configuration or admin panel for version information; typically found in config files or database.Verify Fix Applied:
Verify that access to /storage/ endpoint now requires proper authentication and returns appropriate error codes for unauthorized requests.📡 Detection & Monitoring
Log Indicators:
- HTTP requests to /storage/ endpoint from unauthorized IPs or users
- Access denied errors for /storage/ endpoint
Network Indicators:
- Unusual traffic patterns to /storage/ endpoint
- Requests bypassing authentication mechanisms
SIEM Query:
source="web_server_logs" AND (url_path="/storage/" AND NOT user="authenticated_user")🔗 References
- https://github.com/Xzzz111/exps/blob/main/archives/mogu_blog_v2-broken_access_control-1/report.md
- https://github.com/Xzzz111/exps/blob/main/archives/mogu_blog_v2-broken_access_control-1/report.md#proof-of-concept
- https://vuldb.com/?ctiid.333822
- https://vuldb.com/?id.333822
- https://vuldb.com/?submit.692104
