CVE-2026-16623

Create Block Theme < 2.10.0 - Admin+ PHP Code Injection via Pattern Save (Multisite)

Published Aug 4, 2026 CVSS 3.1 · 8 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Wordpress-extensions
Wordpress-extensions create Block Theme
Vendors & Products Wordpress-extensions
Wordpress-extensions create Block Theme
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Weaknesses CWE-94
Type Values Removed Values Added
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.
Title Create Block Theme < 2.10.0 - Admin+ PHP Code Injection via Pattern Save (Multisite)
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
WPScan
Published
Updated
Aug 4, 2026, 5:30 PM
Reserved
Jul 22, 2026, 2:59 PM
Status
Deferred
Published
Aug 4, 2026, 7:16 AM
Modified
Aug 26, 2026, 4:31 PM