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Cornerstone vulnerabilities

7 tracked advisories · slug cornerstone

Important: Cornerstone appearing in this catalog does not mean your website is affected. Exposure depends on your installed version. How SiteRespond intelligence works

Tracked advisories

7

Latest advisory

25 June 2026

CISA KEV matches

0

In this WordPress feed

WordPress slug

cornerstone

Plugin

What this means for Cornerstone

This catalog lists 7 known advisories affecting Cornerstone. The most recent was published on 25 June 2026. If you use this software, compare your installed version against the affected ranges on each advisory and update to a fixed release outside those ranges. SiteRespond Defence checks your actual installed version when the plugin is connected — listing here does not by itself mean your site is vulnerable.

Latest issues

  • Cornerstone < 7.8.9 - Missing Authorization

    This advisory describes a other issue in the affected software. Review the source advisory and your installed version to assess exposure.

    Published 25 June 2026

  • Cornerstone < 7.8.8 - Missing Authorization

    This advisory describes a other issue in the affected software. Review the source advisory and your installed version to assess exposure.

    Published 25 June 2026

  • Cornerstone < 7.8.8 - Authenticated (Subscriber+) SQL Injection

    May allow attackers to read or modify database contents beyond intended access.

    Published 16 June 2026

Vulnerability types

  • Cross-site scripting3
  • SQL injection1

Authentication (inferred from titles)

  • Unauthenticated0
  • Authenticated3
  • Unspecified4

Advisory history

Known Cornerstone advisories published by month.

All advisories

Check whether your installed version is affected

SiteRespond Defence matches your installed Cornerstone version against this catalog when the Defence plugin is connected to your WordPress site.

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