vBulletin Authentication Bypass Vulnerability
漏洞信息
漏洞名称： vBulletin Authentication Bypass Vulnerability
漏洞编号：
- CVE： CVE-2025-48827
漏洞类型： 权限绕过
漏洞等级： 严重
漏洞描述： ### 受影响产品
vBulletin是一款广泛使用的论坛软件，支持多种功能如用户管理、内容发布和社区互动，常见于企业和个人网站。由于其流行性，vBulletin成为了攻击者的常见目标。此次漏洞影响vBulletin 5.0.0至5.7.5和6.0.0至6.0.3版本，当运行在PHP 8.1或更高版本时尤为严重。
漏洞解释
此漏洞属于权限绕过类型，技术根源在于vBulletin在处理未认证用户的API请求时，未能正确验证调用者的身份，导致攻击者可以远程调用受保护的API方法。这种设计缺陷使得攻击者无需任何认证即可执行本应受限的操作。
影响分析
成功利用此漏洞的攻击者可以远程执行任意系统命令，以Web服务器用户的身份完全控制系统。这意味着攻击者可以窃取敏感数据、篡改网站内容、甚至利用服务器作为跳板进行进一步攻击。由于漏洞利用无需认证且可以自动化执行，其风险等级被评定为“严重”。企业应立即升级到vBulletin 6.0.4或更高版本，并在升级PHP环境前应用所有安全补丁，以防止潜在的大规模攻击。
产品厂商： vBulletin
产品名称： vBulletin
影响版本： 5.0.0–5.7.5 and 6.0.0–6.0.3
来源： https://github.com/SystemVll/CVE-2025-48827
类型： CVE-2025:github search
仓库文件
- .gitignore
- .python-version
- README.md
- main.py
- pyproject.toml
- uv.lock
来源概述
CVE-2025-48827 - vBulletin Authentication Bypass Exploit
Overview
This repository contains a proof-of-concept exploit for CVE-2025-48827, a critical authentication bypass vulnerability affecting vBulletin 5.0.0–5.7.5 and 6.0.0–6.0.3 when running on PHP 8.1 or later. The vulnerability allows unauthenticated attackers to invoke protected API methods remotely, potentially leading to remote code execution and full system compromise.
- Author: pszyszkowski
- Severity: Critical
- CVE: CVE-2025-48827
- References:
Impact
Successful exploitation allows unauthenticated remote attackers to execute arbitrary system commands as the web server user, resulting in full system compromise.
Requirements
- Python 3.7+
requestslibrarycoloredlibrarypyfigletlibrary
Install dependencies:
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Usage
Prepare a text file (e.g., targets.txt) with one target URL per line:
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Run the exploit:
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Optional: Set a custom timeout (default is 10 seconds):
1 | |
How It Works
- Checks if the target is running vBulletin by looking for common indicators.
- Sends a crafted unauthenticated request to
/ajax/api/ad/wrapAdTemplate. - Confirms exploitation by checking for specific patterns in the JSON response.
- Reports vulnerable targets and provides remediation advice.
Remediation
- Upgrade to vBulletin 6.0.4+ before upgrading to PHP 8.1.
- Apply the latest security patches.
Disclaimer
This tool is for educational and authorized security testing purposes only. Do not use against systems without explicit permission.