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CVE-2026-109400— InstaWP Connect <= 0.1.4.1 - Authenticated (Subscriber+) Privilege Escalation via Role-as-Capability Admin Page and API Key Disclosure via 'instawp_sync_tab_roles' Role-as-Capability Setting

Quick assessment

Affected
instawp InstaWP Connect – 1-click WP Staging & Migration
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 "InstaWP Connect – 1-click WP Staging & Migration" 在所有 0.1.4.1 及以下版本中存在权限提升漏洞。该漏洞的成因在于：插件通过 注册其管理页面时，将 返回的角色名称直接用作所需权限（capability）；而 WordPress 会将该角色名称解析为与该角色匹配的真实权限，导致任何拥有该角色的用户均可访问。与此同时， 函数将存储在 选项中的主 API 密钥（master API key）直接以明文形式渲染为 HTML 输入框的 属性，

CVSS 7.5 · High EPSS 0.35% · P27

Affected Version Matrix 1

VendorProduct Version RangeStatus
instawp InstaWP Connect – 1-click WP Staging & Migration ≤ 0.1.4.1 affected
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I. Basic Information for CVE-2026-109400

Vulnerability Information
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Vulnerability Title
InstaWP Connect <= 0.1.4.1 - Authenticated (Subscriber+) Privilege Escalation via Role-as-Capability Admin Page and API Key Disclosure via 'instawp_sync_tab_roles' Role-as-Capability Setting
Source: CVE Program / CVE List V5
Vulnerability Description
The InstaWP Connect – 1-click WP Staging & Migration plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 0.1.4.1 This is due to the plugin registering its admin page via `add_management_page()` using a role name returned by `InstaWP_Setting::get_allowed_role()` as the required capability — which WordPress resolves as a real capability match for any user holding that role — combined with `generate_section_field()` rendering the master API key from the `instawp_api_options` option directly as the `value` attribute of a plain-text HTML input with no additional `manage_options` or equivalent capability check. This makes it possible for authenticated attackers with Subscriber-level access and above to read the plaintext master API key, use its SHA-256-derived secret as a bearer token accepted by the plugin's REST API `validate_api_request()`, and call `POST /wp-json/instawp-connect/v2/auto-login` to mint a 30-second single-use login URL that sets an administrator authentication cookie — fully escalating their privileges. Exploitation requires the site to be actively connected to InstaWP and an administrator to have added the attacker's role to the plugin's Sync Tab Access list (`instawp_sync_tab_roles`); notably, the settings tab suppression logic only hides the tab when `administrator` is absent from the list entirely, meaning a mixed configuration retaining administrator alongside a lower role still serves the full settings page — including the API key — to the lower-privileged user.
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
instawp InstaWP Connect – 1-click WP Staging & Migration 0 ~ 0.1.4.1 -

II. Public POCs for CVE-2026-109400

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III. Intelligence Information for CVE-2026-109400

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Patches & Fixes for CVE-2026-109400 (1)

Vendor Advisories for CVE-2026-109400 (1)

Other References for CVE-2026-109400 (1)

IV. Related Vulnerabilities

Same product: InstaWP Connect – 1-click WP Staging & Migration
Same vendor: instawp
Same weakness: CWE-269

V. Comments for CVE-2026-109400

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