Xtooltech Xtool AnyScan Android Application, Missing Authentication for Critical Function, CVE-2025-63435 (Critical)

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How the mentioned CVE works:

1. The update server endpoint lacks authentication.

2. No credentials are required for access.

3. Attackers send unauthenticated HTTP requests.

4. The endpoint serves update packages freely.

5. This misses server-side validation checks.

6. It allows remote unauthorized downloads.

7. Version 4.40.40 is affected.

8. The Android app update process compromised.

9. Attackers can fetch package files.

10. No token or session verification.

11. Exploitable over network remotely.

12. User interaction is not needed.

13. IP address checks are absent.

14. Basic authentication is missing.

15. Endpoint is publicly exposed.

16. Leads to information disclosure.

17. Update binaries can be analyzed.

18. Further exploitation is possible.

19. Compromises application security.

20. Integrity is severely impacted.

DailyCVE Form:

Platform: Xtool AnyScan Android
Version: 4.40.40
Vulnerability: Unauthenticated Update Access
Severity: Critical
date: 11/24/2025

Prediction: Patch by 12/15/2025

What Undercode Say:

Analytics:

Bash commands:

curl -v http://update.xtooltech.com/latest.zip
wget http://update.xtooltech.com/package.bin

Codes:

import requests

r = requests.get(‘http://update.xtooltech.com/update’)

if r.status_code == 200:

print(“Accessible”)

How Exploit:

Direct HTTP request to endpoint.

Download update packages anonymously.

Analyze packages for vulnerabilities.

Protection from this CVE:

Implement authentication on endpoints.

Use HTTPS for encryption.

Require API keys access.

Impact:

Proprietary code exposure.

Reverse engineering risk.

Application integrity compromise.

🎯Let’s Practice Exploiting & Learn Patching For Free:

Sources:

Reported By: nvd.nist.gov
Extra Source Hub:
Undercode

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