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CVE-2026-93428— Ultimate Member <=2.13.1 敏感信息泄露漏洞

一分钟漏洞结论

影响对象
ultimatemember Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin
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“Ultimate Member – 用户资料、注册、登录、会员目录、内容限制与会员资格管理”在所有 2.13.1 及更早版本中存在授权绕过漏洞。该漏洞源于插件未能正确验证用户是否具备执行某项操作的权限。攻击者无需身份认证，即可通过查询公开可访问的 端点，获取隐私受限的会员资料字段值，包括那些明确配置为“仅限所有者”、“仅限会员”或“按角色限制”的字段。 该端点所需的非ces（nonce）参数 会通过 向所有未认证访客公开提供。由于该 nonce 并未提供实质性的访问控制机制，任何匿名访问者

CVSS 7.5 · High
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一、 漏洞 CVE-2026-93428 基础信息

漏洞信息
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Vulnerability Title
Ultimate Member <= 2.13.1 - Missing Authorization to Unauthenticated Sensitive Profile Field Disclosure via Member Directory Field Privacy Bypass
来源: CVE Program / CVE List V5
Vulnerability Description
The Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.13.1 This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to view privacy-restricted member profile field values — including fields explicitly configured as owner-only, members-only, or role-restricted — by querying the publicly accessible wp_ajax_nopriv_um_get_members endpoint. The nonce required by the endpoint ('um-frontend-nonce') is emitted to all unauthenticated visitors via wp_localize_script, meaning it provides no meaningful access control and any anonymous visitor can satisfy the endpoint's authentication requirements.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
来源: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
来源: CVE Program / CVE List V5

受影响产品

厂商 产品 影响版本 CPE 订阅
ultimatemember Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin 0 ~ 2.13.1 -

二、漏洞 CVE-2026-93428 的公开POC

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三、漏洞 CVE-2026-93428 的情报信息

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CVE-2026-93428 其他参考 (8)

IV. Related Vulnerabilities

Same product: Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin
Same vendor: ultimatemember
Same weakness: CWE-862

V. Comments for CVE-2026-93428

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