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High 8.0Published Aug 4, 2026

CVE-2026-16623Create Block Theme < 2.10.0 - Admin+ PHP Code Injection via Pattern Save (Multisite)

Updated under an hour ago ()

Does this affect you?

It affects Unknown Create Block Theme. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
8.0 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Weakness (CWE)
CWE-94
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
WPScan
NVD analysis
Deferred
Record last updated
Aug 4, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Unknown Create Block Theme
unknown:create_block_theme (from the name)
before 2.10.0
CNA record

References

  • exploit, vdb-entry, technical-description

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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