CVE-2026-9710: CWE-200 Information Exposure in Cornerstone
CVE-2026-9710 is an information exposure vulnerability in the Cornerstone WordPress plugin version 3.0.0. The plugin fails to enforce capability checks on a CSS-preview request handler and exposes a nonce to all logged-in users on any wp-admin page. This allows any authenticated user to evaluate dynamic content tokens against arbitrary users and disclose sensitive metadata, including raw password hashes. This vulnerability affects the premium Cornerstone page builder bundled with the X theme, not the unrelated free Cornerstone plugin from the WordPress.org repository.
AI Analysis
Technical Summary
The Cornerstone WordPress plugin before version 7.8.8 (specifically version 3.0.0 as stated) contains an information exposure vulnerability (CWE-200) due to missing capability checks on a CSS-preview request handler. The plugin exposes a nonce required to call this handler to every logged-in user on wp-admin pages. This flaw enables any authenticated user to evaluate dynamic content tokens against arbitrary users, leading to disclosure of sensitive metadata, including raw password hashes. The issue is specific to the premium Cornerstone page builder bundled with the X theme and does not affect the free Cornerstone plugin from the WordPress.org repository. No CVSS score or official remediation level is provided, and no known exploits are reported in the wild.
Potential Impact
Any authenticated user on a WordPress site using the affected Cornerstone plugin version 3.0.0 can exploit this vulnerability to disclose sensitive user metadata, including raw password hashes. This exposure can lead to significant security risks such as credential compromise and unauthorized access. The vulnerability does not affect the free Cornerstone plugin from the WordPress.org repository, only the premium bundled version.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch information is provided in the available data. Until a patch is available, restrict authenticated user access to trusted users only and monitor for suspicious activity. Follow vendor communications closely for updates on remediation.
CVE-2026-9710: CWE-200 Information Exposure in Cornerstone
Description
CVE-2026-9710 is an information exposure vulnerability in the Cornerstone WordPress plugin version 3.0.0. The plugin fails to enforce capability checks on a CSS-preview request handler and exposes a nonce to all logged-in users on any wp-admin page. This allows any authenticated user to evaluate dynamic content tokens against arbitrary users and disclose sensitive metadata, including raw password hashes. This vulnerability affects the premium Cornerstone page builder bundled with the X theme, not the unrelated free Cornerstone plugin from the WordPress.org repository.
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Cornerstone WordPress plugin before version 7.8.8 (specifically version 3.0.0 as stated) contains an information exposure vulnerability (CWE-200) due to missing capability checks on a CSS-preview request handler. The plugin exposes a nonce required to call this handler to every logged-in user on wp-admin pages. This flaw enables any authenticated user to evaluate dynamic content tokens against arbitrary users, leading to disclosure of sensitive metadata, including raw password hashes. The issue is specific to the premium Cornerstone page builder bundled with the X theme and does not affect the free Cornerstone plugin from the WordPress.org repository. No CVSS score or official remediation level is provided, and no known exploits are reported in the wild.
Potential Impact
Any authenticated user on a WordPress site using the affected Cornerstone plugin version 3.0.0 can exploit this vulnerability to disclose sensitive user metadata, including raw password hashes. This exposure can lead to significant security risks such as credential compromise and unauthorized access. The vulnerability does not affect the free Cornerstone plugin from the WordPress.org repository, only the premium bundled version.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch information is provided in the available data. Until a patch is available, restrict authenticated user access to trusted users only and monitor for suspicious activity. Follow vendor communications closely for updates on remediation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-05-27T14:02:20.118Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a3b7815eed863c81e5f735b
Added to database: 06/24/2026, 06:24:21 UTC
Last enriched: 06/24/2026, 06:40:14 UTC
Last updated: 06/24/2026, 06:40:14 UTC
Views: 3
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