Cornerstone: Code execution
Cornerstone is affected by code execution. Exposure depends on how the affected operation is made reachable by the site. Successful exploitation can run attacker-controlled code in the WordPress hosting account. The published affected range is n/a to < 7.8.8.
- Component
- Cornerstone
- Plugin slug
cornerstone- Affected
- n/a to < 7.8.8
- Safe version
7.8.8- Published
- Jun 17, 2026
This CVE was published Jun 17, 2026 and is one of 7 known issues for this plugin.
Update, patch or deactivate.
Update Cornerstone to 7.8.8 or later, or disable and remove it until a fixed version is available.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
Subscriber Arbitrary Code Execution in Cornerstone < 7.8.8 versions.
CVE / CNA vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H