The Types plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in an unknown function in versions up to, and including, 3.4.17. This makes it possible for attackers, with administrator-level access, to upload arbitrary files on the affected site's server which may make remote code execution possible.
CVE-2023-27440 is a high severity with CVSS 7.2 Remote Code Execution issue affecting the Plugin Toolset Types – Custom Post Types, Custom Fields and Taxonomies. It affects Versions up to 3.4.17 and is fixed in 3.4.18.
Use the related hub and response guides to connect this CVE-2023-27440 report with patch validation, scanner checks, and site hardening work.
Open the grouped hub for related CVEs, affected ranges, severity mix, and patch coverage.
Check access, XML-RPC exposure, backup readiness, and monitoring after patching.
Use containment, evidence capture, remediation, and validation steps when exploit risk is high.
CVE-2023-27440 is tracked for the Plugin Toolset Types – Custom Post Types, Custom Fields and Taxonomies as high severity with CVSS 7.2. The affected range is Versions up to 3.4.17. Update Toolset Types – Custom Post Types, Custom Fields and Taxonomies to 3.4.18 or newer where that version is compatible with the site.
Search engines and operators need more than a title. This page exposes the identifier, affected range, patch evidence, and source coverage that make the vulnerability actionable.
This report has a CVE identifier, which makes it suitable for focused search and vulnerability triage workflows.
Affected version data gives operators a concrete comparison point against installed WordPress software.
A fixed version is present, so the page can answer update and remediation intent directly.
External references are available for source validation, advisory review, and incident notes.
Use these checks when converting this record into a patch ticket, incident note, or risk acceptance decision.
Inventory the installed Plugin package and compare its version with Versions up to 3.4.17.
Confirm Toolset Types – Custom Post Types, Custom Fields and Taxonomies is updated to 3.4.18 or newer.
Review references and CVSS vector details for exploitability, authentication requirements, and exposure path.
After patching, re-run vulnerability monitoring and keep the related plugin or theme hub under review for follow-up CVEs.
| Software Type | Plugin |
|---|---|
| Software Slug |
types
View on wordpress.org
|
| CVE | CVE-2023-27440 |
| Patched Versions |
3.4.18
|
| Affected Versions |
Versions up to 3.4.17
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
Toolset Types < 1.8.8 - Cross-Site Scripting
Toolset Types <= 1.2.1.1 - Cross-Site Scripting
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