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WPGraphQL Smart Cache - Security Vulnerability (CVE-2026-92099)

CVE-2026-92099

The WPGraphQL Smart Cache WordPress plugin before 2.3.2 does not require authorisation or validate a caller-supplied query identifier before storing a persisted query from a request, allowing unauthenticated users to publish arbitrary query documents and claim query aliases before a site's own frontend registers them.

CVE-2026-92099

MEDIUM CVSS 6.5 Published 2026-09-19 Updated 2026-09-21
AI Risk Elevated (62/100) Active Exploit: No strong signal Published Exploit: No public exploit references Priority: P3 Priority
Severity Band MEDIUM
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Affected Components 1
Reference Links 1
AI Risk Engine Elevated (62/100)
Exploitability Medium
Active Exploitation No strong signal
Published Exploit Status No public exploit references

Threat Timeline

  1. 2026-09-19 CVE published and first recorded in the threat feed.
  2. 2026-09-21 Record updated with latest vulnerability metadata.
  3. 2026-09-26 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 14 days ago

AI enriched 14 days ago (2026-09-26 02:00 UTC)

Technical Summary

The WPGraphQL Smart Cache WordPress plugin before 2.3.2 does not require authorisation or validate a caller-supplied query identifier before storing a persisted query from a request, allowing unauthenticated users to publish arbitrary query documents and claim query aliases before a site's own frontend registers them.

Potential Impact

Severity is MEDIUM (CVSS 6.5). Depending on deployment context, affected components may be exposed to unauthorized actions or data integrity risk.

Exploitability Assessment

Exploitability is assessed as Medium based on low-bar exploit prerequisites.

Primary risk drivers: low-bar exploit prerequisites

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 62/100 (Elevated, Medium) with priority P3 Priority. Prioritize remediation where affected components process customer data, admin sessions, or Internet-exposed workflows.

Affected Products

WPGraphQL Smart Cache PLUGIN · wpgraphql-smart-cache Affected: < 2.3.2 Fixed in: 2.3.2

References

What to do about this

Patch promptly The consequence is significant even where an attacker needs a foothold first.

Fix it

Update WPGraphQL Smart Cache to 2.3.2 or later.

That is the complete fix. Everything below is what protects you in the meantime.

No Hack Halt control meaningfully contains this one — updating is the remedy. We would rather say so than sell you something that will not help.

Start free

Not sure if you are affected?

Scan your site to see whether it runs WPGraphQL Smart Cache, and at which version.

Free, no installation, no account. It reads what your site already publishes, then tells you which plugins carry known vulnerabilities and what to do about each one.

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Am I affected by this vulnerability?

You are affected if your site runs WPGraphQL Smart Cache. Versions below 2.3.2 are vulnerable; that release and later are not. No account is needed to exploit this, so a public site is reachable by anyone.

How do I fix it?

Update WPGraphQL Smart Cache to version 2.3.2 or later. That is the complete fix.