CVE-2025-62717
📋 TL;DR
Emlog Pro 2.5.23 has a session verification code error that allows attackers to reuse email verification codes. This authentication bypass vulnerability affects all Emlog Pro installations using email verification features. Attackers could potentially hijack accounts or perform unauthorized actions.
💻 Affected Systems
- Emlog Pro
📦 What is this software?
Emlog by Emlog
⚠️ Risk & Real-World Impact
Worst Case
Complete account takeover, administrative access compromise, and potential data exfiltration or system control.
Likely Case
Unauthorized account access, password resets for legitimate users, and potential privilege escalation.
If Mitigated
Limited impact with proper network segmentation and monitoring, but authentication bypass remains possible.
🎯 Exploit Status
Exploitation requires access to email verification functionality but is technically simple once that access is obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Commit 1f726df0ce56a1bc6e8225dd95389974173bd0c0
Vendor Advisory: https://github.com/emlog/emlog/security/advisories/GHSA-wwj4-ppfj-hcm6
Restart Required: No
Instructions:
1. Update to the latest Emlog Pro version. 2. Apply commit 1f726df. 3. Clear all sessions and verification codes. 4. Test email verification functionality.
🔧 Temporary Workarounds
Disable Email Verification
allTemporarily disable email verification features until patched
Implement Rate Limiting
allAdd rate limiting to verification code endpoints
🧯 If You Can't Patch
- Implement network segmentation to isolate Emlog systems
- Enable detailed logging and monitoring for verification code usage
🔍 How to Verify
Check if Vulnerable:
Check if running Emlog Pro 2.5.23 and test if verification codes can be reusedCheck Version:
Check Emlog admin panel or version.php fileVerify Fix Applied:
Verify commit 1f726df is applied and test that verification codes cannot be reused📡 Detection & Monitoring
Log Indicators:
- Multiple verification attempts with same code
- Unusual verification patterns
- Failed verification attempts followed by successful reuse
Network Indicators:
- Unusual traffic to verification endpoints
- Multiple verification requests from same source
SIEM Query:
source="emlog" AND (verification_code_reuse OR multiple_verification_attempts)