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I. Basic Information for CVE-2025-48827
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
vBulletin 5.0.0 through 5.7.5 and 6.0.0 through 6.0.3 allows unauthenticated users to invoke protected API controllers' methods when running on PHP 8.1 or later, as demonstrated by the /api.php?method=protectedMethod pattern, as exploited in the wild in May 2025.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
对候选路径的不恰当保护
Source: NVD (National Vulnerability Database)
Vulnerability Title
Internet Brands vBulletin 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Internet Brands vBulletin是Internet Brands公司的一个论坛插件。 Internet Brands vBulletin 5.0.0至5.7.5版本和6.0.0至6.0.3版本存在安全漏洞,该漏洞源于未经身份验证的用户可能调用受保护的API控制器方法。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
vBulletinvBulletin 5.0.0 ~ 5.7.5 -
II. Public POCs for CVE-2025-48827
#POC DescriptionSource LinkShenlong Link
1vBulletin 5.0.0 through 5.7.5 and 6.0.0 through 6.0.3 contain an authentication bypass caused by unauthenticated access to protected API controllers on PHP 8.1 or later, letting unauthenticated attackers invoke protected methods remotely.Starting from PHP 8.1, due to an internal adjustment to handling of ReflectionMethod::invoke() and similar methods, it now allows — by default — invocation of protected / private methods when using PHP's Reflection API. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-48827.yamlPOC Details
2Critical Unauthenticated API Access in vBulletinhttps://github.com/0xgh057r3c0n/CVE-2025-48827POC Details
3Vbullettin RCE - CVE-2025-48827https://github.com/wiseep/CVE-2025-48827POC Details
4This 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.https://github.com/SystemVll/CVE-2025-48827POC Details
5Critical Unauthenticated API Access in vBulletinhttps://github.com/zr1p3r/CVE-2025-48827POC Details
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III. Intelligence Information for CVE-2025-48827
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