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Vulnerabilities

Vulnerability · CVE-2026-13756

Improper Privilege Management

Published Jul 11, 2026 · catalog updated Oct 22, 2026 · WP Grid Builder WP Grid Builder

Patch now

CVE-2026-13756 is in the CISA known-exploited catalog. Confirm WP Grid Builder WP Grid Builder against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Severity
High8.8
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
0.44%
Remediation
Remediation guidance
Affected products
stated WP Grid Builder · vendor WP Grid Builder WP Grid Builder

The WP Grid Builder plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 2.3.3. This is due to missing authorization and meta key validation in the handler for the REST endpoint. This makes it possible for authenticated attackers, with Subscriber-level access and above, to elevate their privileges to Administrator by updating their own user meta with a crafted nested array payload.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • stated WP Grid Builder<= 2.3.3
  • vendor WP Grid Builder WP Grid Builderversion unspecified

How to fix CVE-2026-13756

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2026-13756 is in the CISA known-exploited catalog. Confirm WP Grid Builder WP Grid Builder against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Compare what you have installed with WP Grid Builder <= 2.3.3. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

CWE-269: Improper Privilege Management. EPSS 0.44%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

WordPress security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 22, 2026 · VulnCheck KEV

    Detected

    The WP Grid Builder plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 2.3.3. This is due to missing authorization and meta key validation in the handler for the REST endpoint. This makes it possible for authenticated attackers, with Subscriber-level access and above, to elevate their privileges to Administrator by updating their own user meta with a c

  2. Oct 22, 2026 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Sources

  • CVE.orgVulnerability recordCVE-2026-13756

    The WP Grid Builder plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 2.3.3. This is due to missing authorization and meta key validation in the handler for the REST endpoint. This makes it possible for authenticated attackers, with

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-13756

    30-day exploitation probability 0.44%

    first.org
  • VulnCheck KEVConfirmed exploitationCVE-2026-13756

    The WP Grid Builder plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 2.3.3. This is due to missing authorization and meta key validation in the handler for the REST endpoint. This makes it possible for authenticated attackers, with

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 23, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.