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CVE-2026-111114— Nexter Extension <= 4.7.11 - Authenticated (Subscriber+) Privilege Escalation to 'reset-view' Parameter

Quick assessment

Affected
posimyththemes Nexter Extension – Security, Performance, Code Snippets & Site Toolkit
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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

CVSS 7.5 · High EPSS 0.29% · P20

Affected Version Matrix 1

VendorProduct Version RangeStatus
posimyththemes Nexter Extension – Security, Performance, Code Snippets & Site Toolkit ≤ 4.7.11 affected
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I. Basic Information for CVE-2026-111114

Vulnerability Information
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Vulnerability Title
Nexter Extension <= 4.7.11 - Authenticated (Subscriber+) Privilege Escalation to 'reset-view' Parameter
Source: 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.
Source: 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
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
posimyththemes Nexter Extension – Security, Performance, Code Snippets & Site Toolkit 0 ~ 4.7.11 -

II. Public POCs for CVE-2026-111114

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III. Intelligence Information for CVE-2026-111114

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Patches & Fixes for CVE-2026-111114 (1)

Vendor Advisories for CVE-2026-111114 (1)

Vendor Pages for CVE-2026-111114 (3)

IV. Related Vulnerabilities

Same product: Nexter Extension – Security, Performance, Code Snippets & Site Toolkit
Same vendor: posimyththemes
Same weakness: CWE-269

V. Comments for CVE-2026-111114

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