CVE-2025-70758

7.5 HIGH

📋 TL;DR

This CVE describes an authentication bypass vulnerability in chetans9 core-php-admin-panel where the authentication validation script sends a redirect header but doesn't terminate execution, allowing unauthenticated attackers to access protected pages. Any system running vulnerable versions of this software is affected. The vulnerability specifically exposes protected administrative interfaces and potentially sensitive data.

💻 Affected Systems

Products:
  • chetans9 core-php-admin-panel
Versions: All versions through commit a94a780d6
Operating Systems: Any OS running PHP
Default Config Vulnerable: ⚠️ Yes
Notes: Affects all installations using the vulnerable auth_validate.php file. The vulnerability is in the core authentication mechanism.

⚠️ 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

Complete compromise of the admin panel leading to unauthorized access to customer databases, data exfiltration, privilege escalation, and potential lateral movement within the network.

🟠

Likely Case

Unauthorized access to protected admin pages, viewing of sensitive customer data, and potential modification of application settings.

🟢

If Mitigated

Limited impact with proper network segmentation, strong authentication controls, and monitoring in place.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires sending HTTP requests to bypass authentication. The vulnerability is simple to exploit with basic HTTP knowledge.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Not available

Vendor Advisory: Not available

Restart Required: No

Instructions:

1. Edit includes/auth_validate.php
2. Add exit(); or die(); after header('Location: login.php');
3. Save the file
4. No restart required for PHP changes

🔧 Temporary Workarounds

Add exit() to auth_validate.php

linux

Manually edit the vulnerable file to add exit() after the redirect header

sed -i "s/header('Location: login.php');/header('Location: login.php');\nexit();/g" includes/auth_validate.php

Web Application Firewall Rule

all

Block unauthenticated access to protected pages

🧯 If You Can't Patch

  • Implement network segmentation to isolate the admin panel from sensitive systems
  • Add additional authentication layers (2FA, IP whitelisting) and monitor access logs

🔍 How to Verify

Check if Vulnerable:

Check if includes/auth_validate.php contains header('Location: login.php'); without exit() or die() immediately after

Check Version:

Check git commit hash or version file if available

Verify Fix Applied:

Verify exit(); or die(); appears after header('Location: login.php'); in auth_validate.php

📡 Detection & Monitoring

Log Indicators:

  • Unauthenticated access to protected pages
  • Multiple failed redirects followed by successful access

Network Indicators:

  • HTTP requests to protected endpoints without authentication cookies

SIEM Query:

source="web_access.log" AND (url="*/admin/*" OR url="*/protected/*") AND NOT (cookie="*session*" OR cookie="*auth*")

🔗 References

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