Cornerstone < 7.8.8 - Authenticated (Subscriber+) SQL Injection

6.5
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CVE CVE-2026-54185
CVSS 6.5 (Medium)
Publicly Published June 16, 2026
Last Updated June 23, 2026
Researcher Nguyen Ba Khanh

Description

The Cornerstone plugin for WordPress is vulnerable to SQL Injection in versions up to 7.8.8 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with subscriber-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

Learn more about SQL Injection vulnerabilities and how to prevent them.

References

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Vulnerability Details for Cornerstone

Software Type Plugin
Software Slug cornerstone (view on wordpress.org)
Patched? Yes
Remediation Update to version 7.8.8, or a newer patched version
Affected Version
  • < 7.8.8
Patched Version
  • 7.8.8

Recent vulnerabilities in Cornerstone

# Title CVE ID CVSS Researchers Date
1 Cornerstone < 7.8.8 - Missing Authorization CVE-2026-9710 4.3 Real_King_Engine June 25, 2026
2 Cornerstone < 7.8.9 - Missing Authorization CVE-2026-9709 4.3 Real_King_Engine June 25, 2026
3 Cornerstone < 7.8.8 - Authenticated (Subscriber+) Arbitrary Code Execution CVE-2026-49113 8.8 Nguyen Ba Khanh June 4, 2026
4 Cornerstone <= 7.7.3 - Authenticated (Contributor+) Stored Cross-Site Scripting CVE-2025-63072 6.4 João Pedro Soares de Alcântara October 6, 2025
5 Cornerstone <= 0.8.0 - Reflected Cross-Site Scripting CVE-2024-28002 6.1 Rafie Muhammad April 26, 2024
6 Cornerstone <= 0.8.0 - Reflected Cross-Site Scripting via PHP_SELF CVE-2024-32570 6.1 Rafie Muhammad April 16, 2024

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