WordPress plugin
Cornerstone security & vulnerabilities
Unpatched vulnerability in the latest version
At least one vulnerability affects the latest version and no fix has been released. Deactivate the plugin or restrict access to the affected feature until the vendor ships a patch.
- Critical0
- High1
- Medium6
- Low0
All Cornerstone vulnerabilities
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Cornerstone: common questions
Does Cornerstone have known vulnerabilities?
Yes. VulnCrest Radar lists 7 known vulnerabilities in Cornerstone: 1 high, 6 medium. At least one is not fixed in the latest version.
How do I check which version of Cornerstone I run?
In wp-admin open Plugins → Installed Plugins; the version is shown under the name. Without admin access, our passive Check my site tool can often read it from public files.
What is the most recent Cornerstone vulnerability?
CVE-2026-9709, published Jun 25, 2026: Cornerstone < 7.8.9 - Missing Authorization. Severity: Medium (CVSS 4.3).
Is any Cornerstone vulnerability listed in CISA KEV?
No. None of the known Cornerstone vulnerabilities is currently listed in the CISA KEV catalog.