CVE-2026-13756
Subscriber-level users can escalate to Administrator via WP Grid Builder REST endpoint.
Is CVE-2026-13756 being exploited?
Not confirmed. CVE-2026-13756 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.44% probability of exploitation in the next 30 days.
How severe is CVE-2026-13756?
CVE-2026-13756 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-13756?
Yes. A fix has been recorded for CVE-2026-13756. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-13756 affect?
CVE-2026-13756 affects WP Grid Builder (<=2.3.3), WordPress sites using the plugin, REST endpoint /wp-json/wpgb/v2/metadata. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-13756?
Update to patched plugin when released or remove/restrict plugin and audit admin accounts.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated Subscriber can overwrite wp_capabilities via /wp-json/wpgb/v2/metadata to obtain Administrator privileges.
Immediate action required
- affected<= 2.3.3
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.