CVE-2025-9395

6.3 MEDIUM

📋 TL;DR

This vulnerability in wangsongyan wblog 0.0.1 allows remote attackers to perform server-side request forgery (SSRF) attacks through the RestorePost function in backup.go. Attackers can manipulate the fileName argument to make the server send unauthorized requests to internal systems. Anyone running this specific version of wblog is affected.

💻 Affected Systems

Products:
  • wangsongyan wblog
Versions: 0.0.1
Operating Systems: All platforms running wblog
Default Config Vulnerable: ⚠️ Yes
Notes: All installations of version 0.0.1 are vulnerable by default.

⚠️ 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.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could access internal services, exfiltrate sensitive data, or pivot to other systems within the network.

🟠

Likely Case

Unauthorized access to internal HTTP services, potential data leakage from internal APIs or services.

🟢

If Mitigated

Limited impact if network segmentation prevents internal service access from the vulnerable server.

🌐 Internet-Facing: HIGH - Remote exploitation possible with public exploit available.
🏢 Internal Only: MEDIUM - Internal attackers could exploit if they have network access to the vulnerable system.

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Public proof-of-concept available, remote exploitation without authentication.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: None available

Vendor Advisory: None - vendor did not respond to disclosure

Restart Required: No

Instructions:

No official patch available. Consider migrating to alternative software or implementing workarounds.

🔧 Temporary Workarounds

Disable backup functionality

all

Remove or disable the backup.go file and RestorePost functionality

rm backup.go
Remove backup-related endpoints from routing

Input validation and sanitization

all

Implement strict validation on fileName parameter to prevent SSRF

Add validation to restrict fileName to local paths only
Implement allowlist for acceptable file paths

🧯 If You Can't Patch

  • Implement network segmentation to isolate wblog server from internal services
  • Deploy web application firewall (WAF) with SSRF protection rules

🔍 How to Verify

Check if Vulnerable:

Check if running wblog version 0.0.1 and if backup.go file exists with RestorePost function

Check Version:

Check wblog version in configuration or package manager

Verify Fix Applied:

Verify backup functionality is disabled or fileName validation prevents external URL access

📡 Detection & Monitoring

Log Indicators:

  • Unusual file restore attempts
  • Requests to backup endpoints with external URLs in parameters
  • Outbound connections from wblog to unexpected internal services

Network Indicators:

  • Unusual outbound HTTP requests from wblog server to internal IP ranges
  • Traffic patterns suggesting internal service scanning

SIEM Query:

source="wblog" AND (uri="*backup*" OR uri="*restore*") AND (param="*http://*" OR param="*://*")

🔗 References

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