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CVE-2026-9709 - Before 7 Plugin

CVE-2026-9709

The Cornerstone WordPress plugin before 7.8.9 does not enforce capability checks on one of its REST API routes, allowing any authenticated user to disclose the metadata of any other user, including roles, session token previews and stored billing/shipping fields. This affects the premium co Cornerstone page builder distributed bundled with the X , not the unrelated free `cornerstone` Cornerstone WordPress plugin before 7.8.9 (v0.8.x) on the .org repository.

CVE-2026-9709

HIGH CVSS 7.7 Published 2026-06-24 Updated 2026-06-25
AI Risk High (78/100) Active Exploit: No strong signal Published Exploit: No public exploit references Priority: P2 Urgent
Severity Band HIGH
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Affected Components 2
Reference Links 1
AI Risk Engine High (78/100)
Exploitability High
Active Exploitation No strong signal
Published Exploit Status No public exploit references

Threat Timeline

  1. 2026-06-24 CVE published and first recorded in the threat feed.
  2. 2026-06-25 Record updated with latest vulnerability metadata.
  3. 2026-06-27 AI technical context refreshed for mitigation and impact guidance.
  4. Now Monitoring for follow-up changes, linked references, and new related CVEs.

AI Context

Machine-generated threat intelligence

AI Updated just now

AI enriched just now (2026-06-27 20:39 UTC)

Technical Summary

The Cornerstone WordPress plugin before 7.8.9 does not enforce capability checks on one of its REST API routes, allowing any authenticated user to disclose the metadata of any other user, including roles, session token previews and stored billing/shipping fields. This affects the premium co Cornerstone page builder distributed bundled with the X , not the unrelated free `cornerstone` Cornerstone WordPress plugin before 7.8.9 (v0.8.x) on the .org repository.

Potential Impact

Severity is HIGH (CVSS 7.7). Depending on deployment context, affected components may be exposed to unauthorized actions or data integrity risk.

Exploitability Assessment

Exploitability is assessed as High based on remote code execution potential.

Primary risk drivers: remote code execution potential

Mitigation Recommendations

Validate affected product versions, prioritize patching, and monitor references for vendor remediation guidance. If immediate patching is not possible, apply compensating controls and limit exposure of vulnerable surfaces.

Detection & Monitoring

Track authentication anomalies, unexpected file writes, and suspicious plugin API activity around affected components.

Business Impact Lens

AI risk score 78/100 (High, High) with priority P2 Urgent. Prioritize remediation where affected components process customer data, admin sessions, or Internet-exposed workflows.

Affected Products

Before 7 PLUGIN · before-7 Affected: < 7.8.9 Fixed in: 7.8.9
Cornerstone PLUGIN · cornerstone Affected: < 7.8.9 Fixed in: 7.8.9
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