CVE-2026-104767— WooCommerce插件 20260828版 权限提升漏洞
一分钟漏洞结论
影响对象
davefx Membership & User Roles for WooCommerce (Automatic Role Changer)
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 的 WooCommerce 插件“Membership & User Roles for WooCommerce (Automatic Role Changer)”在版本 20260828 及更早版本中存在权限提升漏洞。该漏洞源于 函数在无需验证的情况下，无条件地将存储在用户元数据缓存 中的每一个角色重新分配给用户，而未检查这些缓存中的角色是否仍被外部提供商有效分配。此外， 函数会将新的外部角色合并到缓存中，但从未移除已被撤销的角色，从而使上述问题成为永久性隐患。 这一漏洞使得拥有订阅者及以上权
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一、 漏洞 CVE-2026-104767 基础信息
漏洞信息
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Vulnerability Title
Membership & User Roles for WooCommerce (Automatic Role Changer) <= 20260828 - Authenticated (Subscriber+) Privilege Escalation to Stale Foreign Role Cache
来源: CVE Program / CVE List V5
Vulnerability Description
The Membership & User Roles for WooCommerce (Automatic Role Changer) plugin for WordPress is vulnerable to Privilege Escalation in versions up to, and including, 20260828. This is due to the `maybe_add_role_to_user()` function unconditionally re-assigning every role stored in the `dfxwcrc_foreign_roles` user meta cache without verifying that each cached role is still actively assigned by the external provider — a condition made permanent by `remember_foreign_roles()`, which merges new foreign roles into the cache but never evicts roles that have since been revoked. This makes it possible for authenticated attackers with subscriber-level access and above to restore a previously revoked Administrator role to their own account, gaining full administrative control of the site, by triggering any role-assignment event such as completing a purchase for a role-mapped product. Exploitation requires Replace Roles mode to be enabled and the attacker's account to have previously received Administrator legitimately through a separate role-management mechanism while the plugin was active, so that `administrator` was written into the `dfxwcrc_foreign_roles` user meta cache before the external provider revoked it.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/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 |
|---|---|---|---|---|
| davefx | Membership & User Roles for WooCommerce (Automatic Role Changer) | 0 ~ 20260828 | - |
|
二、漏洞 CVE-2026-104767 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-104767 其他参考 (6)
IV. Related Vulnerabilities
V. Comments for CVE-2026-104767
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