CVE-2026-109447— User Profile Builder 4.0.3 未授权权限提升漏洞
一分钟漏洞结论
影响对象
cozmoslabs User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
WordPress 插件 "User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor" 在 4.0.3 及之前的所有版本中存在权限提升漏洞。该漏洞源于 函数对 参数的处理：激活处理器将攻击者提供的角色值直接传递给 ，而未进行白名单验证。此外，4.0.3 版本中的保留名称检查机制豁免了预先存在的表单字段，导致一个元数据名称（meta-name）为 的遗留字段得以保留，从而将攻击者可控的请求输入桥
影响版本矩阵 1
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| cozmoslabs | User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor | ≤ 4.0.3 |
affected |
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一、 漏洞 CVE-2026-109447 基础信息
漏洞信息
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Vulnerability Title
User Profile Builder <= 4.0.3 - Unauthenticated Privilege Escalation to 'role' Parameter via Legacy Meta-Name Collision on [wppb-register]
来源: CVE Program / CVE List V5
Vulnerability Description
The User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 4.0.3 via the `role` parameter handled by the `wppb_add_meta_to_user_on_activation()` function. The vulnerability exists because the activation handler passes the attacker-supplied role value directly to `WP_User::set_role()` with no allow-list validation, and the 4.0.3 reserved-name check exempts pre-existing form fields from the block, allowing a legacy field with meta-name `role` to persist and bridge attacker-controlled request input into the serialized signup record stored in `wp_signups`. This makes it possible for unauthenticated attackers to gain a fully activated WordPress administrator account by submitting `role=administrator` through the public `[wppb-register]` shortcode form and subsequently clicking the confirmation activation link. Exploitation requires the site to have a legacy form field with meta-name `role` carried over from before the 4.0.3 upgrade, email confirmation enabled, and open user registration — all stable site-state conditions once established.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| cozmoslabs | User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor | 0 ~ 4.0.3 | - |
|
二、漏洞 CVE-2026-109447 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
AI 生成 POC
高级
未找到公开 POC。
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CVE-2026-109447 补丁与修复 (1)
CVE-2026-109447 厂商页面 (1)
CVE-2026-109447 其他参考 (1)
同批安全公告 · cozmoslabs · 2026-10-16 · 共 4 条
| CVE-2026-100186 | 7.2 HIGH | User Profile Builder 4.0.3 未授权存储型跨站脚本漏洞 |
| CVE-2026-107768 | 7.2 HIGH | TranslatePress 3.3.7 未认证存储型跨站脚本漏洞 |
| CVE-2026-107748 | 6.4 MEDIUM | User Profile Builder 4.0.3 存储型跨站脚本漏洞 |
IV. Related Vulnerabilities
Same vendor: cozmoslabs
V. Comments for CVE-2026-109447
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