CVE-2026-16623 Details
Description
The Create Block WordPress plugin before 2.10.0 does not correctly escape user-supplied text before writing it into a generated PHP pattern file, allowing a multisite subsite administrator (who holds the capability gating this action but is denied the capability that normally gates PHP file editing) to inject and execute arbitrary PHP code on the server.
A remote code execution vulnerability exists in the Create Block WordPress plugin in versions prior to 2.10.0. The issue arises because the plugin fails to properly escape user-supplied text before writing it into a generated PHP pattern file. This flaw allows a multisite subsite administrator, who has the capability to perform this action but lacks the permission for PHP file editing, to inject and execute arbitrary PHP code on the server.
Users are advised to update the Create Block WordPress plugin to version 2.10.0 or later.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Aug 4, 2026CISA-ADP
Assessed Aug 4, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://wpscan.com/vulnerability/19c7fdaa-5e75-481d-884c-68fdb2fb8f8d/ | [email protected] | AdvisoryExploitRemedy |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-94 | Improper Control of Generation of Code ('Code Injection') | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| Create Block | < 2.10.0 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 4, 2026 | CVE Modified | CISA-ADP |
| Aug 4, 2026 | New CVE Received | [email protected] |