CVE-2026-111114— Nexter Extension 4.7.11 认证权限提升漏洞
一分钟漏洞结论
影响对象
posimyththemes Nexter Extension – Security, Performance, Code Snippets & Site Toolkit
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"Nexter Extension – Security, Performance, Code Snippets & Site Toolkit"在 4.7.11 及之前的所有版本中存在权限提升漏洞。该漏洞产生的原因如下：当提供的用户名与已认证的调用者匹配时， 函数中的 处理器未执行 nonce（一次性令牌）或能力（capability）检查；同时，该插件唯一的清理机制—— 钩子——在 WordPress 通过 执行批量角色变更时不会触发，因为该操作直接调用了 方法，导致用户元数据 中残留的
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一、 漏洞 CVE-2026-111114 基础信息
漏洞信息
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Vulnerability Title
Nexter Extension <= 4.7.11 - Authenticated (Subscriber+) Privilege Escalation to 'reset-view' Parameter
来源: CVE Program / CVE List V5
Vulnerability Description
The Nexter Extension – Security, Performance, Code Snippets & Site Toolkit plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 4.7.11 The vulnerability exists because the `/?reset-view` handler in `role_switcher_to_view_admin_as()` performs no nonce or capability check when the supplied username matches the authenticated caller, and because the plugin's only cleanup mechanism — the `profile_update` hook — does not fire when WordPress performs a bulk role change via `wp-admin/users.php?action=promote`, which calls `WP_User::set_role()` directly and leaves a stale `administrator` value in the `nxtext_view_admin_original_role` user meta. This makes it possible for authenticated attackers with Subscriber-level access or above to restore the stale stored Administrator role to their own account, effectively escalating their privileges to Administrator. Exploitation requires that the attacker's account previously held the Administrator role and used the View Admin Role Switcher feature before being demoted specifically through the bulk role-change control rather than the Edit User screen, as only the bulk path bypasses the `profile_update` hook that would otherwise have cleared the stored original role.
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 |
|---|---|---|---|---|
| posimyththemes | Nexter Extension – Security, Performance, Code Snippets & Site Toolkit | 0 ~ 4.7.11 | - |
|
二、漏洞 CVE-2026-111114 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-111114 补丁与修复 (1)
CVE-2026-111114 厂商安全公告 (1)
CVE-2026-111114 厂商页面 (3)
IV. Related Vulnerabilities
Same vendor: posimyththemes
V. Comments for CVE-2026-111114
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