FKIE_CVE-2026-111114

Vulnerability from fkie_nvd - Published: 2026-10-16 05:17 - Updated: 2026-10-16 05:17
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/nexter-extension/tags/4.7.11/include/panel-settings/extensions/nexter-ext-view-admin-role.php#L265
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/nexter-extension/tags/4.7.11/include/panel-settings/extensions/nexter-ext-view-admin-role.php#L287
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/nexter-extension/tags/4.7.11/include/panel-settings/extensions/nexter-ext-view-admin-role.php#L302
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/nexter-extension/tags/4.7.11/include/panel-settings/extensions/nexter-ext-view-admin-role.php#L51
security@wordfence.comhttps://plugins.trac.wordpress.org/changeset/3740891/nexter-extension/trunk/include/panel-settings/extensions/nexter-ext-view-admin-role.php
security@wordfence.comhttps://www.wordfence.com/threat-intel/vulnerabilities/id/ae86441d-5a95-45a7-869a-9e7872365a1f?source=cve
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Nexter Extension \u2013 Security, Performance, Code Snippets \u0026 Site Toolkit",
          "vendor": "posimyththemes",
          "versions": [
            {
              "lessThanOrEqual": "4.7.11",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@wordfence.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Nexter Extension \u2013 Security, Performance, Code Snippets \u0026 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\u0027s only cleanup mechanism \u2014 the `profile_update` hook \u2014 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\u0027s 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."
    }
  ],
  "id": "CVE-2026-111114",
  "lastModified": "2026-10-16T05:17:30.350",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 5.9,
        "source": "security@wordfence.com",
        "type": "Primary"
      }
    ]
  },
  "published": "2026-10-16T05:17:30.350",
  "references": [
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/nexter-extension/tags/4.7.11/include/panel-settings/extensions/nexter-ext-view-admin-role.php#L265"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/nexter-extension/tags/4.7.11/include/panel-settings/extensions/nexter-ext-view-admin-role.php#L287"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/nexter-extension/tags/4.7.11/include/panel-settings/extensions/nexter-ext-view-admin-role.php#L302"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/nexter-extension/tags/4.7.11/include/panel-settings/extensions/nexter-ext-view-admin-role.php#L51"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/changeset/3740891/nexter-extension/trunk/include/panel-settings/extensions/nexter-ext-view-admin-role.php"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/ae86441d-5a95-45a7-869a-9e7872365a1f?source=cve"
    }
  ],
  "sourceIdentifier": "security@wordfence.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-269"
        }
      ],
      "source": "security@wordfence.com",
      "type": "Primary"
    }
  ]
}



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