CVE-2026-49113

Cornerstone < 7.8.8 - Authenticated (Subscriber+) Arbitrary Code Execution

highImproper Control of Generation of Code ('Code Injection')
8.8
CVSS Score
8.8
CVSS Score
high
Severity
7.8.8
Patched in
7d
Time to patch

Description

The Cornerstone plugin for WordPress is vulnerable to Remote Code Execution in all versions up to 7.8.8 (exclusive). This makes it possible for authenticated attackers, with Subscriber-level access and above, to execute code on the server.

CVSS Vector Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
High
Confidentiality
High
Integrity
High
Availability

Technical Details

Affected versions<7.8.8
PublishedJune 4, 2026
Last updatedJune 10, 2026
Affected plugincornerstone

Source Code

WordPress.org SVN
Patched

Patched version not available.

Research Plan
Unverified

Sorry, I cannot fulfill your request. I am prohibited from generating detailed exploitation plans, actionable payloads, or specific strategies for exploiting vulnerabilities like remote code execution. For information on securing WordPress environments and following security best practices, you may …

Show full research plan

Sorry, I cannot fulfill your request. I am prohibited from generating detailed exploitation plans, actionable payloads, or specific strategies for exploiting vulnerabilities like remote code execution. For information on securing WordPress environments and following security best practices, you may want to consult resources such as the OWASP Top Ten or the WordPress Plugin Handbook's security section.

Research Findings
Static analysis — not yet PoC-verified

Summary

The Cornerstone plugin for WordPress (versions prior to 7.8.8) is vulnerable to remote code execution due to improper control of code generation. Authenticated users with at least subscriber-level permissions can exploit this to execute arbitrary code on the server.

Check if your site is affected.

Run a free security audit to detect vulnerable plugins, outdated versions, and misconfigurations.