CVE-2025-29451

7.6 HIGH

📋 TL;DR

This vulnerability in Seo Panel 4.11.0 allows remote attackers to access sensitive information through the Mail Setting component. The issue enables unauthorized data exposure affecting all systems running the vulnerable version. Attackers can exploit this without authentication to retrieve confidential configuration details.

💻 Affected Systems

Products:
  • Seo Panel
Versions: 4.11.0
Operating Systems: All platforms running Seo Panel
Default Config Vulnerable: ⚠️ Yes
Notes: All installations of Seo Panel 4.11.0 are vulnerable regardless of configuration.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete compromise of mail server credentials, SMTP configurations, and other sensitive system information leading to data exfiltration, unauthorized email sending, and potential lateral movement.

🟠

Likely Case

Exposure of mail server credentials and configuration details allowing attackers to misuse email services or gather intelligence for further attacks.

🟢

If Mitigated

Limited information disclosure with no critical credentials exposed due to proper access controls and network segmentation.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Based on CWE-918 (Server-Side Request Forgery) classification and remote attacker description, exploitation likely requires minimal technical skill.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: Not available

Restart Required: No

Instructions:

1. Monitor Seo Panel vendor channels for security updates
2. Apply any available patches immediately when released
3. Consider upgrading to newer versions if available

🔧 Temporary Workarounds

Restrict Access to Mail Settings

all

Limit access to the Mail Setting component using web server configuration or application firewalls

# Apache example: <Location /seopanel/mail_settings> Deny from all </Location>
# Nginx example: location /seopanel/mail_settings { deny all; }

Network Segmentation

linux

Isolate Seo Panel instance from internet and restrict internal network access

# Firewall rule example: iptables -A INPUT -p tcp --dport [seopanel_port] -s [trusted_ips] -j ACCEPT

🧯 If You Can't Patch

  • Implement strict network access controls to limit exposure
  • Monitor for unusual access patterns to mail configuration endpoints

🔍 How to Verify

Check if Vulnerable:

Check Seo Panel version in admin panel or via version.php file. If version is 4.11.0, system is vulnerable.

Check Version:

grep -r 'SEO_PANEL_VERSION' /path/to/seopanel/ or check admin dashboard

Verify Fix Applied:

Verify version has been updated beyond 4.11.0 or test mail setting component access restrictions.

📡 Detection & Monitoring

Log Indicators:

  • Unusual access to /seopanel/mail_settings paths
  • Multiple failed authentication attempts followed by mail setting access
  • Requests with unusual parameters to mail configuration endpoints

Network Indicators:

  • Unexpected outbound connections from Seo Panel server
  • Traffic patterns indicating information gathering

SIEM Query:

source="web_logs" AND (uri_path="/mail_settings" OR uri_path="/seopanel/mail_settings") AND status_code=200

🔗 References

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