CVE-2025-62406
📋 TL;DR
This vulnerability in Piwigo allows attackers to send password reset emails containing malicious links to legitimate users. By manipulating the Host header in HTTP requests, attackers can redirect users to attacker-controlled sites when they click password reset links. All Piwigo installations running version 15.6.0 or earlier are affected.
💻 Affected Systems
- Piwigo
📦 What is this software?
Piwigo by Piwigo
⚠️ Risk & Real-World Impact
Worst Case
Attackers could redirect users to phishing sites that capture credentials, leading to account takeover and potential data theft from the photo gallery.
Likely Case
Attackers send password reset emails with malicious links to users, potentially leading to credential harvesting if users click the links.
If Mitigated
With proper email security awareness training, users would recognize suspicious password reset emails and avoid clicking malicious links.
🎯 Exploit Status
Exploitation requires knowing or guessing valid usernames/emails, but the attack itself is simple to execute.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 15.7.0
Vendor Advisory: https://github.com/Piwigo/Piwigo/security/advisories/GHSA-9986-w7jf-33f6
Restart Required: No
Instructions:
1. Backup your Piwigo installation and database. 2. Download Piwigo 15.7.0 from the official website. 3. Replace the existing installation files with the new version. 4. Verify the update completed successfully.
🔧 Temporary Workarounds
Disable password reset functionality
allTemporarily disable the password reset feature to prevent exploitation while planning for patching.
Configure web server to validate Host headers
linuxConfigure your web server (Apache/Nginx) to validate or restrict Host header values.
🧯 If You Can't Patch
- Implement rate limiting on password reset requests to prevent mass exploitation
- Monitor logs for unusual password reset activity patterns
🔍 How to Verify
Check if Vulnerable:
Check your Piwigo version by logging into the admin panel and viewing the version information.Check Version:
Check the Piwigo admin dashboard or view the version in the application filesVerify Fix Applied:
After updating to 15.7.0, verify the version shows 15.7.0 in the admin panel.📡 Detection & Monitoring
Log Indicators:
- Multiple password reset requests for different users from same IP
- Password reset requests with unusual Host header values
Network Indicators:
- HTTP requests to password reset endpoint with modified Host headers
SIEM Query:
source="piwigo_logs" AND (event="password_reset_request" AND count() > threshold)