CVE-2026-111114

7.5High

Published 16 Oct 2026 · NVD status: Deferred · AI triage by gemini-3.8-flash

7.5High

Attack vector: Network
Complexity: High
Privileges needed: Low
User interaction: None
Impact: Full C/I/A compromise
Weakness: CWE-269

Impact

Authenticated users (Subscriber+) can escalate privileges back to Administrator. The attacker must have previously held the Administrator role, used the role switcher, and been demoted via the bulk role-change interface.

Root cause

The role-switcher reset handler lacks capability and nonce checks, restoring an outdated Administrator role stored in user metadata that was never cleared during bulk demotions.

Affected systems

Nexter Extension – Security, Performance, Code Snippets & Site Toolkit plugin for WordPress up to and including 4.7.11

CVSS v3.1 · CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Fix & remediation

Upgrade the plugin to a version newer than 4.7.11 once available. As an immediate workaround, disable the View Admin Role Switcher feature or manually delete the 'nxtext_view_admin_original_role' user meta entries from the database.

shell

$ wp plugin update nexter-extension

AI-suggested. Run it in staging first and check it against the vendor advisory. Why?

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NVD 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.

References

Source: nvd.nist.gov/vuln/detail/CVE-2026-111114