CVE-2026-16623

8 HIGH

Published 2026-08-04 · Updated 2026-08-04

AI risk analysis

Summary: The flaw allows a multisite subsite administrator to inject and execute arbitrary PHP code by improperly escaping user-supplied text in the Create Block WordPress plugin before version 2.10.0.
Exploitability: Exploitation requires access to a multisite subsite with the capability to create blocks but without the ability to edit PHP files, making it moderately difficult.
Blast radius: If exploited, this could lead to full server compromise and unauthorized execution of arbitrary code on the affected WordPress site.
Prioritized remediation: Update the Create Block plugin to version 2.10.0 or later immediately.

rcewebwp-pluginphp-injection

Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.

NVD 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.

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Weaknesses

CWE-94

All references

https://wpscan.com/vulnerability/19c7fdaa-5e75-481d-884c-68fdb2fb8f8d/

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.